US20170063140A1 - Method of charging battery and electronic device for implementing the same - Google Patents
Method of charging battery and electronic device for implementing the same Download PDFInfo
- Publication number
- US20170063140A1 US20170063140A1 US15/235,674 US201615235674A US2017063140A1 US 20170063140 A1 US20170063140 A1 US 20170063140A1 US 201615235674 A US201615235674 A US 201615235674A US 2017063140 A1 US2017063140 A1 US 2017063140A1
- Authority
- US
- United States
- Prior art keywords
- voltage
- current
- interface
- external power
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims description 89
- 230000009467 reduction Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 30
- 238000004891 communication Methods 0.000 description 28
- 230000001413 cellular effect Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 13
- 239000000470 constituent Substances 0.000 description 12
- 238000005259 measurement Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000012546 transfer Methods 0.000 description 8
- 230000014509 gene expression Effects 0.000 description 7
- 230000002441 reversible effect Effects 0.000 description 7
- 230000036541 health Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 229920001621 AMOLED Polymers 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000002591 computed tomography Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H02J7/025—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
-
- H02J7/045—
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
Definitions
- the present disclosure relates generally to battery charging, and more specifically, to an electronic device and a method of charging a battery of the electronic device with a plurality of power sources.
- Methods of charging batteries include wired and wireless charging methods.
- An electronic device that is able to perform charging with respect to two charging methods may select, through a switch, one of a power input device that performs wired charging and a power input device that performs wireless charging.
- the electronic device may connect the selected power input device to a charge circuit.
- a reverse current may occur, due to a voltage difference between the plurality of power input devices, which may damage the charge circuit.
- an aspect of the present disclosure provides a method of charging a battery of an electronic device using a plurality of power input devices having different voltages and the electronic device for implementing the method.
- an electronic device includes a housing; a battery disposed within the housing; a first interface electrically or electromagnetically connected to a first external power source; a second interface electrically or electromagnetically connected to a second external power source; and a circuit electrically connected to the battery, the first interface, and the second interface, wherein the circuit changes a first voltage output from the first interface based on a second voltage output from the second interface, changes a first current output from the first interface based on a second current output from the second interface, and charges the battery based on the changed first current and second current.
- a method of charging a battery of an electronic device includes detecting an input of first external power from a first external power source and second external power from a second external power source; changing a first voltage output from the first external power source based on a second voltage input by the second external power source; changing a first current output from the first external power source based on a second current input by the second external power source; and charging the battery based on the first current and the second current.
- an electronic device includes a housing; a battery disposed within the housing; a first interface electrically or electromagnetically connected to a first external power source; a second interface electrically or electromagnetically connected to a second external power source; and a circuit electrically connected to the battery, the first interface, and the second interface, wherein the circuit includes: a battery charge circuit having one side connected in series to the second interface and the other side connected in series to the battery; a current/voltage conversion circuit having one side connected in series to the first interface and the other side connected in series to the battery charge circuit; and a comparison circuit located between the second interface and the current/voltage conversion circuit and having one side connected in series to the second interface and an other side connected in series to the current/voltage conversion circuit.
- FIG. 1 is a block diagram illustrating a network environment according to various embodiments of the present disclosure
- FIG. 2 is a block diagram illustrating a configuration of an electronic device according to various embodiments of the present disclosure
- FIG. 3 is a block diagram illustrating a configuration of a program module according to various embodiments of the present disclosure
- FIG. 4 is a circuit diagram illustrating constituent elements for charging a battery according to an embodiment of the present disclosure
- FIGS. 5A and 5B are circuit diagrams illustrating a current/voltage conversion circuit in a circuit that charges a battery of an electronic device according to an embodiment of the present disclosure
- FIGS. 6A and 6B are graphs illustrating charging of a battery according to a time and current according to an embodiment of the present disclosure.
- FIGS. 7A, 7B, and 8 are flowcharts illustrating an example of charging a battery in a circuit having a plurality of power inputs according to an embodiment of the present disclosure.
- the expression “and/or” includes any and all combinations of the associated listed words.
- the expression “A and/or B” may include A, may include B, or may include both A and B.
- expressions including ordinal numbers may modify various elements.
- such elements are not limited by the above expressions.
- the above expressions do not limit the sequence and/or importance of the elements.
- the above expressions are merely used to distinguish an element from the other elements.
- a first user device and a second user device indicate different user devices, although both device are user devices.
- a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.
- an electronic device may correspond to at least one of a smartphone, a tablet personal computer (PC), a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital audio player (e.g., a moving picture experts group phase 1 or phase 2 (MPEG-1 or MPEG-2) audio layer 3 (MP3) player), a mobile medical device, a camera, or a wearable device.
- the wearable device include a head-mounted-device (HMD) (e.g., electronic eyeglasses), electronic clothing, an electronic bracelet, an electronic necklace, an appcessory, an electronic tattoo, a smart watch, and the like.
- HMD head-mounted-device
- the electronic device may also be a smart home appliances.
- smart home appliances include a television (TV), a digital video disc (DVD) player, an audio system, a refrigerator, an air-conditioner, a cleaning device, an oven, a microwave oven, a washing machine, an air cleaner, a set-top box, a TV box, a game console, an electronic dictionary, an electronic key, a camcorder, an electronic album, or the like.
- the electronic device may also include medical devices (e.g., magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), computed tomography (CT), a scanning machine, an ultrasonic scanning device, and the like), a navigation device, a global positioning system (GPS) receiver, an event data recorder (EDR), a flight data recorder (FDR), a vehicle infotainment device, an electronic equipment for ships (e.g., navigation equipment, gyrocompass, and the like), avionics, a security device, a head unit for vehicles, an industrial or home robot, an automatic teller machine (ATM), a point of sales (POS) system, and the like.
- medical devices e.g., magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), computed tomography (CT), a scanning machine, an ultrasonic scanning device, and the like
- GPS global positioning system
- EDR event data recorder
- FDR flight data recorder
- vehicle infotainment device e.
- the electronic device may also include furniture or a portion of a building/structure, an electronic board, an electronic signature receiving device, a projector, various measuring instruments (e.g., a water meter, an electric meter, a gas meter and a wave meter) and the like.
- the electronic may also include a combination of the devices listed above.
- the electronic device may be a flexible and/or contoured device. It should be obvious to those skilled in the art that the electronic device is not limited to the aforementioned devices.
- a ‘user’ may refer to a person or a device that uses or otherwise controls the electronic device, e.g., an electronic device having artificial intelligence.
- FIG. 1 is a block diagram illustrating a network environment including an electronic device according to an embodiment of the present disclosure.
- an electronic device 101 of a network environment 100 includes a bus 110 , a processor 120 , a memory 130 , an input/output (I/O) interface 150 , a display 160 and a communication interface 170 .
- I/O input/output
- the bus 110 may be a communication circuit that connects the components to each other and transfers data (e.g., control messages) between the components.
- the processor 120 may receive instructions from the components (e.g., the memory 130 , I/O interface 150 , display 160 and communication interface 170 ) via the bus 110 , decode the instructions and perform corresponding operations or data processing according to the decoded instructions.
- the components e.g., the memory 130 , I/O interface 150 , display 160 and communication interface 170 .
- the memory 130 may store instructions or data transferred from/created in the processor 120 and/or the other components (e.g., I/O interface 150 , display 160 and communication interface 170 ).
- the memory 130 include programming modules 140 , such as a kernel 141 , a middleware 143 , an application programming interface (API) 145 , and an application module 147 .
- Each of the programming modules may be software, firmware, hardware or a combination thereof.
- the kernel 141 may control or manage system resources (e.g., the bus 110 , processor 120 , and memory 130 ) used to execute operations or functions of the programming modules, e.g., the middleware 143 , API 145 , and application module 147 .
- the kernel 141 may also provide an interface that can access and control/manage the components of the electronic device 101 via the middleware 143 , API 145 , and application module 147 .
- the middleware 143 may make it possible for the API 145 or application module 147 to perform data communication with the kernel 141 .
- the middleware 143 may also perform control operations (e.g., scheduling and load balancing) for task requests transmitted from the application module 147 using, for example, a method for assigning the order of priority to use the system resources (e.g., the bus 110 , processor 120 , and memory 130 ) of the electronic device 101 to at least one of the applications of the application module 147 .
- control operations e.g., scheduling and load balancing
- the API 145 is an interface that allows the application module 147 to control functions of the kernel 141 or middleware 143 .
- the API 145 may include at least one interface or function (e.g., instruction) for file control, window control, character control, video process, and the like.
- the application module 147 may include applications that are related to short message service (SMS)/multimedia messaging service (MMS), email, calendar, alarm, health care (e.g., an application for measuring blood sugar level, a workout application, and the like), and environment information (e.g., atmospheric pressure, humidity, temperature, and the like).
- SMS short message service
- MMS multimedia messaging service
- the application module 147 may be an application related to exchanging information between the electronic device 101 and the external electronic devices (e.g., an electronic device 104 ).
- the information exchange-related application may include a notification relay application for transmitting specific information to an external electronic device or a device management application for managing external electronic devices.
- the notification relay application may include a function for transmitting notification information, created by the other applications of the electronic device 101 (e.g., SMS/MMS application, email application, health care application, environment information application, and the like), to an external electronic device (e.g., electronic device 104 ).
- the notification relay application may receive notification information from an external electronic device (e.g., electronic device 104 ) and provide it to the user.
- the device management application can manage (e.g., install, delete, or update) part of the functions of an external electronic device (e.g., electronic device 104 ) communicating with the electronic device 101 , e.g., turning on/off the external electronic device, turning on/off part of the components of the external electronic device, adjusting the brightness or the display resolution of the display of the external electronic device, and the like, applications operated in the external electronic device, or services from the external electronic device, e.g., call service or messaging service, and the like.
- an external electronic device e.g., electronic device 104
- the device management application can manage (e.g., install, delete, or update) part of the functions of an external electronic device (e.g., electronic device 104 ) communicating with the electronic device 101 , e.g., turning on/off the external electronic device, turning on/off part of the components of the external electronic device, adjusting the brightness or the display resolution of the display of the external electronic device, and the like, applications operated in the external electronic device,
- the application module 147 may also include applications designated according to attributes (e.g., type of electronic device) of the external electronic device (e.g., electronic device 104 ). For example, if the external electronic device is an MP3 player, the application module 147 may include an application related to music playback. If the external electronic device is a mobile medical device, the application module 147 may include an application related to health care.
- the application module 147 may include an application designated in the electronic device 101 and applications transmitted from external electronic devices (e.g., server 106 , electronic device 104 , and the like).
- the I/O interface 150 may receive instructions or data from the user via an I/O system (e.g., a sensor, keyboard or touch screen) and transfers them to the processor 120 , memory 130 or communication interface 170 through the bus 110 .
- the I/O interface 150 may provide data corresponding to a user's touch input to a touch screen to the processor 120 .
- the I/O interface 150 may receive instructions or data from the processor 120 , memory 130 or communication interface 170 through the bus 110 , and output them to an I/O system (e.g., a speaker or a display).
- the I/O interface 150 may output voice data processed by the processor 120 to a speaker.
- the display 160 may display information (e.g., multimedia data, text data, and the like) on a screen so that the user can view it.
- information e.g., multimedia data, text data, and the like
- the communication interface 170 may communicate between the electronic device 101 and an external system (e.g., a first external electronic device 102 , a second external electronic device 104 , or server 106 ).
- the communication interface 170 may connect to a network 162 in a wireless or wired mode, and communicate with the external system.
- Wireless communication may include Wi-Fi, Bluetooth (BT), near field communication (NFC), global positioning system (GPS) or cellular communication (e.g., long term evolution (LTE), LTE-advanced (LTE-A), code division multiple access (CDMA), wideband CDMA (WCDMA), universal mobile telecommunications system (UMTS), wireless broadband (Wi-Bro), global system for mobile communications (GSM), and the like).
- the wireless communication may include, for example, short range communication 164 .
- Wired communication may include universal serial bus (USB), high definition multimedia interface (HDMI), recommended standard 232 (RS-232), plain old telephone service (POTS), and the like.
- the network 162 may be a telecommunication network.
- the telecommunication network may include a computer network, Internet, Internet of Things (IoT), telephone network, and the like.
- the protocol for communication between the electronic device 101 and the external system e.g., transport layer protocol, data link layer protocol, or physical layer protocol, may be supported by at least one of the application module 147 , API 145 , middleware 143 , kernel 141 and communication interface 170 .
- FIG. 2 is a block diagram illustrating an electronic device according to an embodiment of the present disclosure.
- an electronic device 201 may form all or part of the electronic device 101 of FIG. 1 .
- the electronic device 201 includes one or more processors of an application processor (AP) 210 , a communication module 220 , a subscriber identification module (SIM) card 224 , a memory 230 , a sensor module 240 , an input device 250 , a display module 260 , an interface 270 , an audio module 280 , a camera module 291 , a power management module 295 , a battery 296 , an indicator 297 , and a motor 298 .
- AP application processor
- SIM subscriber identification module
- the AP 210 may control a number of hardware or software components connected thereto by executing the operation system or applications, process data including multimedia data, and perform corresponding operations.
- the AP 210 may be implemented with a system on chip (SoC).
- SoC system on chip
- the AP 210 may further include a graphics processing unit (GPU).
- the communication module 220 (e.g., the communication interface 170 of FIG. 1 ) performs communication for data transmission/reception between the other electronic devices (e.g., the first external electronic device 102 , the second external electronic device 104 , or the server 106 of FIG. 1 ) that are connected to the electronic device (e.g., electronic device 101 of FIG. 1 ) via the network.
- the communication module 220 includes a cellular module 221 , a Wi-Fi module 223 , a BT module 225 , a GPS module 227 , an NFC module 228 and a radio frequency (RF) module 229 .
- RF radio frequency
- the cellular module 221 may provide voice calls, video calls, SMS or Internet service, and the like, via a communication network (e.g., LTE, LTE-A, CDMA, WCDMA, UMTS, Wi-Bro, GSM, and the like).
- the cellular module 221 may also perform identification or authentication for electronic devices in a communication network by using SIM card 224 .
- the cellular module 221 may perform part of the functions of the AP 210 .
- the cellular module 221 may perform part of the functions for controlling multimedia.
- the cellular module 221 may include a communication processor (CP).
- the cellular module 221 may be formed of, for example, an SoC.
- the embodiment of the present disclosure shown in FIG. 2 is implemented in such a way that the cellular module 221 (e.g., a CP), the power management module 295 , the memory 230 , and the like, are separated from the AP 210 , embodiments of the present disclosure can be modified such that the AP 210 includes at least part of the listed elements or other elements of the device 201 (e.g., the cellular module 221 ).
- the AP 210 or the cellular module 221 may load instructions or data transmitted to and from at least one of a non-volatile memory or other components, on a volatile memory and then process them.
- the AP 210 or the cellular module 221 may also store data which is transmitted from/created in at least one of the components, in a non-volatile memory.
- the Wi-Fi module 223 , the BT module 225 , the GPS module 227 and the NFC module 228 may include processors for processing transmission/reception of data, respectively.
- the embodiment of the present disclosure shown in FIG. 2 is implemented such that the cellular module 221 , Wi-Fi module 223 , BT module 225 , GPS module 227 , and NFC module 228 are separated from each other, embodiments of the present disclosure can be modified such that parts of the elements (e.g., two or more elements) are included in an integrated chip (IC) or an IC package.
- IC integrated chip
- part of the processors corresponding to the cellular module 221 , Wi-Fi module 223 , BT module 225 , GPS module 227 , and NFC module 228 may be implemented with an SoC.
- the RF module 229 may transmit or receive data, e.g., RF signals.
- the RF module 229 may include a transceiver, a power amplifier module (PAM), a frequency filter, a low noise amplifier (LNA), and the like.
- the RF module 229 may also include parts for transmitting/receiving electromagnetic waves, e.g., conductors, wires, and the like, via free space during wireless communication.
- cellular module 221 Wi-Fi module 223 , BT module 225 , GPS module 227 , and NFC module 228 share the RF module 229
- an embodiment can be modified in such a way that at least one of the elements transmit or receive RF signals via a separate RF module.
- the SIM card 224 may be fitted into a slot of the electronic device.
- the SIM card 224 may include unique identification information, e.g., integrated circuit card identifier (ICCID), or subscriber information, e.g., international mobile subscriber identity (IMSI).
- ICCID integrated circuit card identifier
- IMSI international mobile subscriber identity
- the memory 230 (e.g., the memory 130 of FIG. 1 ) includes built-in or internal memory 232 and an external memory 234 .
- the built-in memory 232 may include at least one of a volatile memory, e.g., dynamic random access memory (DRAM), static RAM (SRAM), synchronous dynamic RAM (SDRAM), and the like, non-volatile memory, e.g., one time programmable read only memory (OTPROM), programmable ROM (PROM), erasable and programmable ROM (EPROM), electrically erasable and programmable ROM (EEPROM), mask ROM, flash ROM, NAND flash memory, NOR flash memory, and the like.
- a volatile memory e.g., dynamic random access memory (DRAM), static RAM (SRAM), synchronous dynamic RAM (SDRAM), and the like
- non-volatile memory e.g., one time programmable read only memory (OTPROM), programmable ROM (PROM), erasable and
- the built-in memory 232 may be a solid state drive (SSD).
- the external memory 234 may further include a flash drive, e.g., compact flash (CF), secure digital (SD), micro-SD, mini-SD, extreme digital (XD), a memory stick, and the like.
- the external memory 234 may be functionally connected to the electronic device via various types of interfaces.
- the electronic device 101 may further include storage devices or storage media such as hard drives.
- the sensor module 240 may measure a physical quantity or sense operation states of the electronic device 201 and convert the measured or sensed data into electrical signals.
- the sensor module 240 includes, for example, a gesture sensor 240 A, a gyro sensor 240 B, an atmospheric pressure sensor 240 C, a magnetic sensor 240 D, an acceleration sensor 240 E, a grip sensor 240 F, a proximity sensor 240 G, a color sensor 240 H (e.g., red-green-blue (RGB) sensor), a biosensor 240 I, a temperature/humidity sensor 240 J, an luminance sensor 240 K, and an ultra-violet (UV) sensor 240 M.
- a gesture sensor 240 A e.g., a gyro sensor 240 B, an atmospheric pressure sensor 240 C, a magnetic sensor 240 D, an acceleration sensor 240 E, a grip sensor 240 F, a proximity sensor 240 G, a color sensor 240 H (e.g., red-
- the input system 250 includes a touch panel 252 , a pen sensor 254 (e.g., a digital pen sensor), a key 256 and an ultrasonic input device 258 .
- the touch panel 252 may sense touches using a capacitive sensing mode, a pressure sensing mode, an infrared sensing mode, and an ultrasonic sensing mode.
- the touch panel 252 may further include a control circuit. When the touch panel 252 is designed to operate in a capacitive sensing mode, the panel can also sense mechanical/physical touches or proximity of an object.
- the touch panel 252 may further include a tactile layer. When including the tactile layer, the touch panel 252 can also provide tactile feedback to the user.
- the pen sensor 254 may perform detection in a same or similar manner as receiving a user's touch input or by using a separate recognition sheet.
- the key 256 may include mechanical buttons, optical keys or a key pad.
- the ultrasonic input device 258 can sense sounds via a microphone 288 of the electronic device 201 by using an input tool for generating ultrasonic signals, and then receiving and checking data associated with the signals.
- the ultrasonic input device 258 can sense signals in a wireless mode.
- the electronic device 201 may also receive a user's inputs from an external system (e.g., a computer or server) via the communication module 220 .
- an external system e.g., a computer or server
- the display module 260 (e.g., display 160 of FIG. 1 ) includes, for example, a panel 262 , a hologram unit 264 , and a projector 266 .
- the panel 262 may be implemented with a liquid crystal display (LCD), active matrix organic light emitting diodes (AMOLEDs), or the like.
- the panel 262 may be implemented in a flexible, transparent, impact-resistant, and/or wearable form.
- the panel 262 may form a single module with the touch panel 252 .
- the hologram unit 264 shows a three-dimensional image in the air using interference of light.
- the projector 266 may display images by projecting light on a screen. The screen may be placed, for example, inside or outside of the electronic device 201 .
- the display module 260 may further include a control circuit for controlling the panel 262 , the hologram unit 264 , or the projector 266 .
- the interface 270 includes, for example, a HDMI 272 , a USB 274 , an optical interface 276 , a D-subminiature (D-sub) 278 , and the like.
- the interface 270 may also be included in the communication interface 170 shown in FIG. 1 .
- the interface 270 may also include a mobile high-definition link (MHL) interface, an SD card, a multi-media card (MMC) interface, an infrared data association (IrDA) standard interface, or the like.
- MHL mobile high-definition link
- SD card Secure Digital Card
- MMC multi-media card
- IrDA infrared data association
- the audio module 280 may provide conversions between audio and electrical signals. At least part of the components in the audio module 280 may be included in the I/O interface 150 shown in FIG. 1 .
- the audio module 280 may process audio output from/input to, for example, a speaker 282 , a receiver 284 , earphones 286 , the microphone 288 , and the like.
- the camera module 291 may take still images or moving images.
- the camera module 291 may include one or more image sensors (e.g., on the front side and/or the back side), a lens, an image signal processor (ISP), a flash (e.g., an LED or a xenon lamp), or the like.
- image sensors e.g., on the front side and/or the back side
- ISP image signal processor
- flash e.g., an LED or a xenon lamp
- the power management module 295 may manage electric power supplied to the electronic device 201 .
- the power management module 295 may include a power management integrated circuit (PMIC), a charger IC, a battery gauge, and the like.
- PMIC power management integrated circuit
- the PMIC may be implemented in the form of an IC chip or SoC. Charging electric power may be performed in wired and/or wireless modes.
- the charger IC may charge a battery, and prevent input over-voltage or input over-current to the battery from a charger.
- the charger IC may be implemented with a wired charging type and/or a wireless charging type. Examples of the wireless charging type of the charger IC are a magnetic resonance type, a magnetic induction type, an electromagnetic type, an acoustic type, and the like. If the charger IC is implemented with a wireless charging type, it may also include an additional circuit for wireless charging, e.g., a coil loop, a resonance circuit, a rectifier, and the like.
- the battery gauge may measure a residual amount of the battery 296 , a level of voltage, a level of current, a temperature during the charge, and the like.
- the battery 296 stores electric power and supplies it to the electronic device 201 .
- the battery 296 may include a rechargeable battery or a solar battery.
- the indicator 297 shows states of the electronic device 201 or of the parts thereof (e.g., the AP 210 ), e.g., a booting state, a message state, a recharging state, and the like.
- the motor 298 converts an electrical signal into a mechanical vibration.
- the electronic device 201 may include a processor for supporting a mobile TV, e.g., a GPU.
- the mobile TV supporting processor may process media data that complies with standards of digital multimedia broadcasting (DMB), digital video broadcasting (DVB), media flow, and the like.
- DMB digital multimedia broadcasting
- DVD digital video broadcasting
- Each of the elements/units of the electronic device according to the present disclosure may be implemented with one or more components, and may be called different names according to types of electronic devices.
- the electronic device may include at least one element described above.
- the electronic device may also be modified in such a way as to remove part of the elements or include new elements.
- the electronic device may also be modified in such a way that parts of the elements are integrated into one entity that performs their original functions.
- module refers to a unit including hardware, software, firmware or a combination thereof.
- the term “module” may be used interchangeably with “unit,” “logic,” “logical block,” “component,” “circuit,” and the like.
- a module may be a minimum identifiable unit or part of an integrated component.
- a module may also be a minimum unit or part thereof that can perform one or more functions of the module.
- a module may be implemented through mechanical or electronic modes.
- modules may be implemented with at least one of an application specific integrated circuit (ASIC) chip, a field-programmable gate array (FPGAs) and a programmable-logic device that can perform functions that are known or that are yet be developed.
- ASIC application specific integrated circuit
- FPGAs field-programmable gate array
- FIG. 3 is a block diagram of a program module according to various embodiments of the present disclosure.
- the program module 310 includes a kernel 320 , middleware 330 , an API 360 , and applications 370 . At least some of the program module 310 may be preloaded on an electronic device, or may be downloaded from the first external electronic device 102 , the second external device 104 , or the server 106 .
- the kernel 320 includeS, for example, a system resource manager 311 and a device driver 312 .
- the system resource manager 311 may perform control, allocation, retrieval, or the like, of system resources.
- the system resource manager 311 may include a process manager, memory manager, file system manager, or the like.
- the device driver 312 may include, for example, a display driver, camera driver, Bluetooth driver, shared memory driver, USB driver, keypad driver, Wi-Fi driver, audio driver, or an inter-process communication (IPC) driver.
- IPC inter-process communication
- the middleware 330 may provide a function required by the applications 370 in common, or provide various functions to the applications 370 through the API 360 so that the applications 370 can efficiently use limited system resources within the electronic device.
- the middleware 330 includes, for example, at least one of a runtime library 335 , an application manager 341 , a window manager 342 , a multimedia manager 343 , a resource manager 344 , a power manager 345 , a database manager 346 , a package manager 347 , a connectivity manager 348 , a notification manager 349 , a location manager 350 , a graphic manager 351 , and a security manager 352 .
- the runtime library 335 may include a library module which a compiler uses in order to add a new function through a programming language while the applications 370 are being executed.
- the runtime library 335 may perform input/output management, memory management, functionality for an arithmetic function, or the like.
- the application manager 341 may manage, for example, a life cycle of at least one of the applications 370 .
- the window manager 342 may manage graphical user interface (GUI) resources used for the screen.
- the multimedia manager 343 may determine a format required to reproduce various media files, and may encode or decode a media file by using a coder/decoder (codec) appropriate for the corresponding format.
- codec coder/decoder
- the resource manager 344 may manage resources such as a source code, memory, and storage space of at least one of the applications 370 .
- the power manager 345 may operate together with a basic input/output system (BIOS) to manage a battery or other power source, and may provide power information required for the operation of the electronic device.
- the database manager 346 may generate, search for, and/or change a database to be used by at least one of the applications 370 .
- the package manager 347 may manage the installation or update of an application distributed in the form of a package file.
- the connectivity manager 348 may manage a wireless connection such as, for example, Wi-Fi or Bluetooth.
- the notification manager 349 may display or notify of an event, such as an arrival message, appointment, proximity notification, and the like, in such a manner as not to disturb the user.
- the location manager 350 may manage location information of the electronic device.
- the graphic manager 351 may manage a graphic effect, which is to be provided to the user, or a user interface related to the graphic effect.
- the security manager 352 may provide various security functions required for system security, user authentication, and the like. According to an embodiment of the present disclosure, when the electronic device has a telephone call function, the middleware 330 may further include a telephony manager for managing a voice call function or a video call function of the electronic device.
- the middleware 330 may include a middleware module that forms a combination of various functions of the above-described elements.
- the middleware 330 may provide a module specialized for each type of OS in order to provide a differentiated function. Also, the middleware 330 may dynamically delete some of the existing elements, or may add new elements as required.
- the API 360 may be, for example, a set of API programming functions, and may be provided with a different configuration according to an OS. For example, one API set may be provided for each platform. Two or more API sets may be provided for each platform.
- the applications 370 may include, for example, one or more applications which can provide functions such as home 371 , dialer 372 , short message service (SMS)/multimedia message service (MMS) 373 , instant message (IM) 374 , browser 375 , camera 376 , alarm 377 , contacts 378 , voice dialer 379 , email 380 , calendar 381 , media player 382 , album 383 , clock 384 , health care (e.g., measure exercise quantity or blood sugar), or environment information (e.g., atmospheric pressure, humidity, or temperature information).
- SMS short message service
- MMS multimedia message service
- IM instant message
- the applications 370 may include an information exchange application supporting information exchange between the electronic device and an external electronic device (e.g., the first external electronic device 102 or the second external electronic device 104 of FIG. 1 ).
- the information exchange application may include, for example, a notification relay application for transferring specific information to an external electronic device or a device management application for managing an external electronic device.
- the notification relay application may include a function of transferring, to the external electronic device (e.g., the electronic device 102 or 104 ), notification information generated from other applications of the electronic device 101 (e.g., an SMS/MMS application, e-mail application, health management application, or environmental information application). Further, the notification relay application may receive notification information from, for example, an external electronic device and provide the received notification information to a user.
- the external electronic device e.g., the electronic device 102 or 104
- notification information generated from other applications of the electronic device 101 e.g., an SMS/MMS application, e-mail application, health management application, or environmental information application.
- the notification relay application may receive notification information from, for example, an external electronic device and provide the received notification information to a user.
- the device management application may manage (e.g., install, delete, or update), for example, at least one function of an external electronic device (e.g., the first external electronic device 102 or the second external electronic device 104 of FIG. 1 ) communicating with the electronic device (e.g., a function of turning on/off the external electronic device or some components thereof, or a function of adjusting luminance or a resolution of the display), applications operating in the external electronic device, or services provided by the external electronic device (e.g., a call service and a message service).
- an external electronic device e.g., the first external electronic device 102 or the second external electronic device 104 of FIG. 1
- the electronic device e.g., a function of turning on/off the external electronic device or some components thereof, or a function of adjusting luminance or a resolution of the display
- applications operating in the external electronic device e.g., a call service and a message service.
- the applications 370 may include an application (e.g., a health care application of a mobile medical device or the like) designated according to an attribute of the external electronic device (e.g., the first external electronic device 102 or the second external 104 of FIG. 1 ).
- the applications 370 may include an application received from the external electronic device (e.g., the server 106 , or the electronic device 102 or 104 ).
- the applications 370 may include a preloaded application or a third party application which can be downloaded from the server. Names of the elements of the program module 310 may change depending on the type of OS.
- FIG. 4 is a circuit diagram illustrating constituent elements for charging a battery according to an embodiment of the present disclosure.
- an electronic device may charge a battery 406 using a plurality of power input devices (e.g., a first power input device 412 and a second power input device 414 ).
- Operations for charging the battery 406 may be controlled by a power management circuit 400 (e.g., the power management module 295 and hereinafter, the power management circuit 400 ), which is a separate constituent element other than a processor (e.g., the processor 210 of FIG. 2 ) that controls the electronic device.
- the power management circuit 400 includes a current/voltage conversion circuit 402 , comparison circuit 408 , and battery charge circuit 404 and may control operation thereof.
- a device that supplies power to the electronic device i.e., a first power input device 412 and a second power input device 414 .
- the first power input device 412 may include a device that wirelessly supplies power to the electronic device
- the second power input device 414 may include a device that supplies power to the electronic device by wire.
- the first power input device 412 may include a device that supplies power to the electronic device by wire
- the second power input device 414 may include a device that wirelessly supplies power to the electronic device.
- the first power input device 412 and the second power input device 414 may each include a device that supplies power to the electronic device by wire.
- the first power input device 412 and the second power input device 414 may each include a device that supplies power to the electronic device by wireless.
- the first power input device 412 may supply power to the battery charge circuit 404 through the current/voltage conversion circuit 402 .
- the first power input device 412 may include a first interface between the current/voltage conversion circuit 402 and the first power input device 412 .
- the first power input device 412 may supply power (hereinafter, “first power”) to the current/voltage conversion circuit 402 through the first interface.
- a current may be input from the first power input device 412 to the current/voltage conversion circuit 402 through the first interface and hereinafter, may be referred to as a first input current.
- a voltage may be input from the first power input device 412 to the current/voltage conversion circuit 402 through the first interface and hereinafter, may be referred to as a first input voltage.
- the second power input device 414 may supply power to the battery charge circuit 404 through a node 410 located between the current/voltage conversion circuit 402 and the battery charge circuit 404 .
- the second power input device 414 may include a second interface between the node 410 and the second power input device 414 .
- the second power input device 414 may supply power (hereinafter, “second power”) to the battery charge circuit 404 through the second interface.
- a current may be input from the second power input device 414 to a second interface and hereinafter, may be referred to as a second input current.
- a voltage may be input from the second power input device 414 to a second interface and hereinafter, may be referred to as a second input voltage.
- a first output current may be input to the battery charge circuit 404 through the node 410 .
- the first output current may be a current in which the current/voltage conversion circuit 402 adjusts a current of power input from the first power input device 412 to the current/voltage conversion circuit 402 through the first interface and that is output to the battery charge circuit 404 .
- a second output current may be input to the battery charge circuit 404 through the node 410 .
- the second output current may be output from the second power input device 414 to the battery charge circuit 404 through the second interface.
- the battery charge circuit 404 may receive a current (hereinafter, “first output current”) input from the current/voltage conversion circuit 402 through the node 410 .
- the battery charge circuit 404 may receive a current (hereinafter, “second output current”) input from the second power input device 414 through the node 410 . Accordingly, the battery charge circuit 404 may receive the first output current input from the current/voltage conversion circuit 402 and receive the second output current input from the second power input device 414 .
- voltage feedback 4142 which is voltage measurement information of power supplied from the second power input device 414 may be transferred to the current/voltage conversion circuit 402 under the control of the power management circuit 400 .
- the voltage feedback 4142 may include a voltage value of power input from the second power input device 414 .
- a voltage value of the input second power may be measured by a voltage measurement circuit.
- current feedback 4044 when power is supplied from the second power input device 414 , current feedback 4044 , which is measurement information about a current of power may be transferred from the second power input device 414 to the current/voltage conversion circuit 402 .
- the current feedback 4044 may include a current value calculated by comparing a voltage value (hereinafter, “a second voltage value”) of power output from the second power input device 414 and a voltage reference (VREF) using the comparison circuit 408 .
- the voltage reference may be a voltage value initially set when power is input from the second power input device 414 and for example, may be a voltage of 5V. That is, the current feedback 4044 may be a current value calculated by a difference between the second voltage value and a reference voltage.
- the second voltage value may be measured using a coulomb-counter method by a voltage measurement circuit located at an intermediate point 4122 before power of the second power input device 414 is input to the battery charge circuit 404 .
- a comparison process may be performed by the comparison circuit 408 and may be performed to determine whether a second output current reduces. For example, when constant voltage charge is performed, a second output current may gradually reduce.
- the current/voltage conversion circuit 402 may adjust a voltage (first output voltage) output from the current/voltage conversion circuit 402 based on the voltage feedback 4142 of the second power input device 414 .
- the voltage feedback 4142 may include a voltage value of power input from the second power input device 414 to the current/voltage conversion circuit 402 .
- the current/voltage conversion circuit 402 may include a circuit that changes a first input voltage input from the first power input device 412 based on the voltage feedback 4142 and adjust a first output voltage.
- the first output voltage output from the current/voltage conversion circuit 402 based on the voltage feedback 4142 e.g., second input voltage
- the current/voltage conversion circuit 402 may output the first output voltage to the battery charge circuit 404 such that the first output voltage has substantially the same voltage value as that of the second output voltage.
- the current/voltage conversion circuit 402 may output the first output voltage to the battery charge circuit 404 such that the first output voltage has substantially the same voltage value as that of the second output voltage.
- the current/voltage conversion circuit 402 may lower the first input voltage 6.5V input from the first power input device 412 to 4.5V, which is the second output voltage output from the second power input device 414 to the battery charge circuit 404 and may output 4.5V to the battery charge circuit 404 .
- the current/voltage conversion circuit 402 may step up the voltage 4.5V input from the first power to 6.5V, which is the second output voltage output from the second power input device 414 and output 6.5V to the battery charge circuit 404 .
- the current/voltage conversion circuit 402 may adjust a current input from the first power input device 412 based on the current feedback 4044 input from the second power input device 414 and output the current to the battery charge circuit 404 .
- the current feedback 4044 may include a current value calculated by comparing a second voltage value and a voltage reference using the comparison circuit 408 .
- the reference voltage may be a voltage value initially set when power is input from the second power input device 414 .
- the reference voltage may be a voltage value set to monitor a voltage of power input from the second power input device 414 .
- a constant voltage charge may be performed, and the current/voltage conversion circuit 402 may step down (i.e., adjust lower) a first output current based on the current feedback 4044 input from the comparison circuit 408 .
- constant current charge that charges with a constant current and constant voltage charge that charges while gradually reducing a current may be performed.
- a second output current of the second power input device 414 may be reduced under the control of the power management circuit 400 .
- a full charging voltage may be a voltage set to determine whether to perform constant current charge or constant voltage charge.
- the current/voltage conversion circuit 402 may control to reduce the first output current output from the current/voltage conversion circuit 402 based on the input current feedback 4044 .
- the first output current may have a current value of an input current adjusted to be the same as the second output current by the current/voltage conversion circuit 402 when power is supplied from the first power input device 412 . Accordingly, the adjusted first output current may be supplied to the battery charge circuit 404 through a path ‘A’.
- the battery charge circuit 404 may receive a current from the current/voltage conversion circuit 402 and the second power input device 414 to charge the battery 406 .
- the battery charge circuit 404 may determine charge state information (e.g., a battery residual quantity, a battery voltage, and whether the battery is fully charged) of the battery 406 . According to an embodiment of the present disclosure, the battery charge circuit 404 may determine whether a capacity (or level) of the battery 406 is in a full charging state.
- charge state information e.g., a battery residual quantity, a battery voltage, and whether the battery is fully charged
- the battery charge circuit 404 may determine whether a capacity (or level) of the battery 406 is in a full charging state.
- the power management circuit 400 may adjust a first output voltage and a first output current based on power information of the second power. Accordingly, the second input current may be actually the same as the second output current, and the second input voltage may be the same as the second output voltage.
- FIGS. 5A and 5B are circuit diagrams illustrating a current/voltage conversion circuit in a battery charge circuit of an electronic device according to an embodiment of the present disclosure.
- an electronic device may charge the battery 406 using a plurality of power input devices (e.g., the first power input device 412 and the second power input device 414 ). Operations for charging the battery 406 may be controlled by the power management circuit 400 , which is a separate constituent element other than a processor (e.g., the processor 210 ) for controlling the electronic device.
- a processor e.g., the processor 210
- the power management circuit 400 includes the current/voltage conversion circuit 402 and the battery charge circuit 404 . Further, the power management circuit 400 may further include a comparison circuit, as shown in FIG. 4 .
- the current/voltage conversion circuit 402 may include a constant current control circuit 5024 , ADC terminal 5026 , and charge control circuit 5028 .
- the ADC terminal 5026 may receive the voltage feedback 4142 input from the second power input device 414 .
- the ADC terminal 5026 may transfer the voltage feedback 4142 , which is voltage measurement information measured by a measurement circuit (not shown) to the charge control circuit 5028 .
- the charge control circuit 5028 may set a first output voltage output from the current/voltage conversion circuit 402 to the battery charge circuit 404 based on the voltage feedback 4142 .
- the charge control circuit 5028 may step down an output voltage of the current/voltage conversion circuit 402 to be the same as a second output voltage of second power based on the voltage feedback 4142 .
- the second output voltage may be substantially the same as the first input voltage input through the second interface.
- the charge control circuit 5028 may step up a first output voltage of the current/voltage conversion circuit 402 to be the same as a second output voltage of second power based on the voltage feedback 4142 .
- the second output voltage may be substantially the same as the first input voltage input through the second interface.
- the constant current control circuit 5024 may receive an input of the current feedback 4044 .
- the current feedback 4044 may include a current value calculated by comparing a second output voltage (i.e., the “second voltage value”) of second power output from the second power input device 414 through the second interface and a voltage reference VREF using the comparison circuit.
- the constant current control circuit 5024 may monitor a current (hereinafter, “first input current”) input from the first power to the current/voltage conversion circuit 402 at 5022 . Monitoring may be measured with a coulomb-counter method by a current measurement unit. The constant current control circuit 5024 may transfer duty ratio setting information that can adjust a first output current output from the current/voltage conversion circuit 402 to the charge control circuit 5028 .
- the charge control circuit 5028 is a separate constituent element from a control circuit (e.g., the processor 210 of FIG. 2 ) constituting the electronic device and may charge the battery 406 with power (e.g., the first power and the second power) input from the first power input device 412 and the second power input device 414 .
- a control circuit e.g., the processor 210 of FIG. 2
- power e.g., the first power and the second power
- the charge control circuit 5028 may adjust a duty ratio based on the voltage feedback 4142 received from the second power input device 414 through the ADC terminal 5026 .
- the charge control circuit 5028 may adjust a duty ratio based on the current feedback 4044 received from the second power input device 414 through the constant current control circuit 5024 .
- the duty ratio means a ratio of a high signal segment within one period.
- the charge control circuit 5028 may adjust a first output voltage output from the current/voltage conversion circuit 402 .
- the charge control circuit 5028 may adjust a first output current output from the current/voltage conversion circuit 402 .
- the current/voltage conversion circuit 402 further includes metal-oxide semiconductor field-effect-transistors (MOSFETS) 5021 and 5023 .
- MOSFET metal-oxide semiconductor field-effect-transistors
- the MOSFET may enable power of the battery not to be supplied to a system of the electronic device.
- the electronic device may charge the battery 406 using the first power input device 412 and the second power input device 414 .
- Operations for charging the battery 406 may be controlled by the power management circuit 400 , which is a separate constituent element other than a processor (e.g., the processor 210 of FIG. 2 ) that controls the electronic device.
- a processor e.g., the processor 210 of FIG. 2
- the power management circuit 400 includes the current/voltage conversion circuit 402 and the battery charge circuit 404 .
- a control circuit 5100 is included in the power management circuit 400 , but may be a separate constituent element from the power management circuit 400 and may be the processor 210 of FIG. 2 . Accordingly, the control circuit 5100 may equally perform operations performed by the constant current control circuit 5024 and the ACD terminal 5026 of FIG. 5A . That is, the power management circuit 400 may be controlled by the control circuit 5100 .
- the current/voltage conversion circuit 402 of the electronic device may receive the voltage feedback 4142 and the current feedback 4044 according to application of power of the second power input device 414 from the control circuit 5100 .
- the control circuit 5100 may be the same constituent element as the processor 210 of FIG. 2 and may perform the same function as that of the constant current control circuit 5024 and the ADC terminal 5026 of FIG. 5A . That is, when the control circuit 5100 receives an input of the voltage feedback 4142 from the second power input device 414 , the control circuit 5100 may transfer the voltage feedback 4142 to the charge control circuit 5028 .
- control circuit 5100 When the control circuit 5100 receives an input of the current feedback 4044 from the second power input device 414 , the control circuit 5100 may transfer the current feedback 4044 to the charge control circuit 5028 .
- FIG. 5B a detailed description corresponds to that of FIG. 5A and therefore a detailed description thereof is omitted herein.
- operation of the charge control circuit 5028 may be performed under the control of the control circuit 5100 .
- the charge control circuit 5028 may operate under the control of the power management circuit 400 .
- FIGS. 6A and 6B are graphs illustrating charging of a battery according to a time and current according to an embodiment of the present disclosure.
- FIG. 6A is a diagram illustrating a problem that a reverse current occurs when the current/voltage conversion circuit 402 does not receive the current feedback 4044 input from the second power input device 414 .
- FIG. 6B is a diagram illustrating operation of charging the battery 406 without a reverse current when the current/voltage conversion circuit 402 receives the current feedback 4044 input from the second power input device 414 .
- the battery charge circuit 404 may arrive at a time point at which a voltage of the battery 406 becomes a full charging voltage while performing constant current charge. When a voltage of the battery 406 becomes a full charging voltage, the battery charge circuit 404 may perform constant voltage charge.
- the battery charge circuit 404 may perform charge with a constant current value when performing constant current charge. At this time, a charge voltage may gradually step up.
- the battery charge circuit 404 may perform charge with a gradually reducing current value when performing constant voltage charge. At this time, a charge voltage may be constant.
- the full charging voltage may be a voltage value to be a reference to determine whether the battery 406 is fully charged. If a voltage of the battery 406 is not a full charging voltage, the battery charge circuit 404 may perform constant current charge, and if a voltage of the battery 406 is a full charging voltage, the battery charge circuit 404 may perform constant voltage charge.
- an entire charge input 610 may be a current value input from a plurality of power input devices (e.g., the first power input device 412 , the second power input device 414 ) to the battery 406 .
- a plurality of power input devices e.g., the first power input device 412 , the second power input device 414
- a first charge input 620 may be a current value input to the battery 406 by the first power input device 412 .
- a second charge input 630 may be a current value input to the battery 406 by the second power input device 414 .
- the entire charge input 610 that charges the battery 406 may perform constant voltage charge from a time point 601 at which a voltage of the battery 406 arrives at a full charging voltage while performing constant current charge.
- a current value may be constant and a voltage value may step up.
- a current value may gradually reduce, and a voltage value may be constant.
- the battery 406 may receive a current through constant current charge at the constant current charge segment A. Constant current charge may be sequentially performed with a constant value of current, and a charge voltage may step up.
- the battery 406 may receive a gradually reducing value of current through constant voltage charge at the constant voltage charge segment B.
- the battery charge circuit 404 may estimate a predetermined full charging voltage of the battery 406 connected to an output terminal of the battery charge circuit 404 , the battery charge circuit 404 may adjust a second output current. That is, the battery charge circuit 404 may adjust to reduce the second output current at the constant voltage charge segment B, as in the second charge input 630 .
- the current/voltage conversion circuit 402 When the current/voltage conversion circuit 402 does not receive an input of the current feedback 4044 from the second power input device 414 , the current/voltage conversion circuit 402 cannot adjust a first output current. This is because the current/voltage conversion circuit 402 cannot estimate a value of power to be input from the second power input device 414 connected to an output terminal of the current/voltage conversion circuit 402 . Because the current/voltage conversion circuit 402 cannot estimate a value of power to be input from the second power input device 414 , when current feedback is not input from the second power input device 414 , at the constant voltage charge segment B, the current/voltage conversion circuit 402 may continuously supply the first output current to the battery and the charge circuit 404 with the same value, as in the first charge input 620 .
- the first output current may output a constant current value
- the battery charge circuit 404 may control the second output current based on a full charging voltage of the battery 406 .
- the first output current a constant current value is output and the second output current is controlled, and thus reversal of the second output current may occur at the constant voltage charge segment B, as in 606 .
- the current/voltage conversion circuit 402 may receive an input of the current feedback 4044 .
- FIG. 6B is a diagram illustrating operation of charging the battery 406 without a reverse current, as the current/voltage conversion circuit 402 according to various embodiments receives an input of the current feedback 4044 related to a second output current output from the second power input device 414 .
- the entire charge input 640 of the battery 406 enables to perform constant current charge at a constant current charge segment A, and when a voltage of the battery 406 arrives at a time point 601 at which the voltage of the battery 406 is at least equal to a full charging voltage, at a constant voltage charge segment B, the entire charge input 640 may enable to perform constant voltage charge.
- the entire charge input 640 of the battery 406 may enable to charge with the same current value and to charge with a gradually reducing current value from a time point 601 at which the voltage of the battery 406 arrives at a full charging voltage.
- the entire charge input 640 y be the sum of current values input from power input devices (e.g., the first power input device 412 , the second power input device 414 ) that supply power in order to charge the battery 406 .
- the entire charge input 640 may be the sum of current values of a first charge input 650 and a second charge input 660 .
- a current value at the constant voltage charge segment B of the entire charge input 640 may be the sum of a current value of a constant voltage charge segment B-1 in the first charge input 650 and a current value of a constant voltage charge segment B-2 in the second charge input 660 .
- the battery charge circuit 404 may maintain a full charging voltage and gradually reduce a current that charges the battery 406 at the constant voltage charge segment ‘B’.
- the battery charge circuit 404 may control to reduce a second output current.
- the second output current may reduce at the constant voltage charge segment B-2, as in the second charge input 660 graph.
- the current feedback 4044 corresponding to the reduced second output current may be input to the current/voltage conversion circuit 402 .
- the current feedback 4044 may be obtained by comparing a reference voltage first input from the second power input device 414 and a reduced voltage value and may be input to the current/voltage conversion circuit 402 .
- a comparing process corresponds to that of FIG. 4 and therefore a detailed description thereof will be omitted.
- the current/voltage conversion circuit 402 may adjust to reduce a first output current 604 of the first charge input 650 at a constant voltage charge segment B-1.
- a reverse current may not occur.
- a current reduction amount (or a slope) of the first charge input 650 may be greater than a current reduction amount (or a slope) of the second charge input 660 .
- the current/voltage conversion circuit 402 may quickly reduce the first output current 604 , and at the constant voltage charge segment B of the entire charge input 640 , the current/voltage conversion circuit 402 may perform charge through a current of the second charge input 660 .
- the power management circuit 400 may control to quickly reduce the first output current 604 or to stop a current from being output to the battery charge circuit 404 .
- an electronic device may include a housing; a battery disposed within the housing; a first interface electrically or electromagnetically connected to a first external power source; a second interface electrically or electromagnetically connected to a second external power source; and a circuit electrically connected to the battery, the first interface, and the second interface, wherein the circuit changes a first voltage output from the first interface based on a second voltage output from the second interface, changes a first current output from the first interface based on a second current output from the second interface, and charges the battery based on the changed first current and second current.
- the changed first voltage may be substantially the same as the second voltage.
- the circuit may detect reduction of the second current and reduce the first current based on the detection.
- the first power source may output the first voltage and the first current based on power received by wireless.
- the electronic device may further include a connector connected to the second external power source, wherein the electronic device may output the second voltage and the second current based on power received from the second external power source through the connector.
- the circuit may step up the first voltage, if the first voltage is lower than the second voltage and step down the first voltage, if the first voltage is at least equal to the second voltage.
- the circuit may receive the second voltage and the second current from the second interface, reduce the second current at a time point at which a voltage of the battery becomes a predetermined voltage, and reduce the first current according to the reduced second current.
- the circuit may not receive power from the first external power source through the first interface by a predetermined time, when the second external power is input through the second interface while the first external power is input through the first interface.
- the first external power source and the second external power source may be a wireless charge device or a wire charge device.
- an electronic device includes a housing; a battery disposed within the housing; a first interface electrically or electromagnetically connected to a first external power source; a second interface electrically or electromagnetically connected to a second external power source; and a circuit electrically connected to the battery, the first interface, and the second interface, wherein the circuit includes: a battery charge circuit having one side connected in series to the second interface and the other side connected in series to the battery; a current/voltage conversion circuit having one side connected in series to the first interface and the other side connected in series to the battery charge circuit; and a comparison circuit located between the second interface and the current/voltage conversion circuit and having one side connected in series to the second interface and the other side connected in series to the current/voltage conversion circuit.
- the current/voltage conversion circuit may change a first voltage output from the first interface based on a second voltage output from the second interface and change a first current output from the first interface based on a second current output from the second interface.
- FIGS. 7A, 7B, and 8 are flowcharts illustrating an example of charging a battery in a circuit having a plurality of power inputs according to an embodiment of the present disclosure.
- the power management circuit 400 may detect an input of second power at step 701 .
- the second power may be power input from the second power input device 414 to the battery charge circuit 404 through the second interface.
- the power management circuit 400 may control general operations for charging the battery 406 .
- the power management circuit 400 may detect an input of first power while inputting the second power at step 703 .
- the first power may be power input from the first power input device 412 to the power management circuit 400 through the first interface.
- the first power may be power input from the first power input device 412 to the current/voltage conversion circuit 402 of the power management circuit 400 .
- FIG. 7A a description of the first power and the second power corresponds to that of FIG. 4 and therefore a detailed description thereof will be omitted.
- the power management circuit 400 may transfer second power information to the current/voltage conversion circuit 402 at step 705 .
- the second power information may be current feedback 4044 or voltage feedback 4142 , which is measurement information of the second power.
- the voltage feedback 4142 may include an initial voltage value of power input to the second power input device 414 .
- the initial voltage value may be a reference voltage.
- the current feedback 4044 may be a current value calculated by a difference between a voltage value of the second power and a reference voltage.
- the voltage value of the second power may be measured using a coulomb-counter method by a voltage measurement circuit located at the intermediate point 4122 before power of the second power input device 414 is input to the battery charge circuit 404 .
- the power management circuit 400 may control to reduce a current in which the second power input device 414 outputs. Accordingly, a compared current value of a current corresponding to a predetermined reference voltage when power is initially supplied and a present current measured when a voltage of the battery 406 is a full charging voltage may be the current feedback 4044 .
- the power management circuit 400 may know a change of a current value by a difference between an initial voltage value and a present voltage value. For example, if a voltage of the battery 406 is at least equal to a full charging voltage, the power management circuit 400 may know reduction of a current input from the second power input device 414 by the current feedback 4044 . If a voltage of the battery 406 is at least equal to a full charging voltage, the current feedback 4044 may be a current value reduced to correspond to reduction of a current value input from the second power input device 414 .
- the power management circuit 400 may adjust a first output voltage output from the current/voltage conversion circuit 402 based on second power information at step 707 .
- the second power information may be voltage feedback and current feedback. A detailed process thereof will be described with reference to FIG. 7B .
- the power management circuit 400 may compare a first voltage of a first power source and a second voltage of a second power source at step 721 .
- the first voltage is a first input voltage input from the first power input device 412 to the current/voltage conversion circuit 402
- a second voltage is a second input voltage input from the second power input device 414 and is a second input voltage provided to the current/voltage conversion circuit 402 and may include the voltage feedback 4142 .
- the power management circuit 400 may step up (highly adjust) the first output voltage to be the same as the second output voltage at step 725 . That is, the power management circuit 400 may step up (highly adjust) the first output voltage to be the same as the second output voltage based on the voltage feedback 4142 , which is one of second power information.
- the first input voltage may be a voltage value input from the first power input device 412 through a first interface
- the second input voltage may be a voltage value input from the second power input device 414 through a second interface.
- the first output voltage may be a voltage output from the current/voltage conversion circuit 402 to the battery charge circuit 404 and may be a voltage in which a first input voltage is adjusted based on the voltage feedback 4142 .
- the second output voltage may be a voltage output from the second interface to the battery charge circuit 404 and may be the same as a second input voltage.
- the power management circuit 400 may step down (lowly adjust) the first output voltage to be the same as the second output voltage at step 727 . That is, the power management circuit 400 may control the current/voltage conversion circuit 402 based on the voltage feedback 4142 , which is one of second power information to step down (lowly adjust) the first output voltage to be the same as the second output voltage.
- the power management circuit 400 may charge the battery 406 with a first output current and a second output current at step 708 .
- the first output current may be a current output from the current/voltage conversion circuit 402 to the battery charge circuit 404 .
- the second output current may be a current output from the second interface to the battery charge circuit 404 .
- the power management circuit 400 may charge the battery 406 with the first output current and the second output current having the same current value.
- the power management circuit 400 may control the first output current to be the same as the second output current.
- the power management circuit 400 may determine whether a voltage of the battery 406 rises to a full charging voltage at step 709 .
- the full charging voltage may be a value set to a reference for performing constant voltage charge when charging the battery 406 .
- the power management circuit 400 may perform constant current charge until a time point at which a voltage of the battery 406 becomes a full charging voltage. When performing constant current charge, a charge current becomes constant, but a charge voltage may rise. When a voltage of the battery 406 arrives at a full charging voltage, the power management circuit 400 may perform constant voltage charge. When performing constant voltage charge, the power management circuit 400 may control a charge voltage to be constant and to reduce a charge current that charges the battery 406 .
- the power management circuit 400 may control to perform constant voltage charge and to reduce a second output current of the second power input device 414 at step 711 .
- the power management circuit 400 may control the current/voltage conversion circuit 402 to reduce a first output current based on the current feedback 4044 corresponding to a reduced second output current at step 713 . That is, the power management circuit 400 may control the current/voltage conversion circuit 402 to receive the current feedback 4044 .
- the power management circuit 400 may reduce an output current of the current/voltage conversion circuit 402 according to the reduced second output current based on the current feedback 4044 . In an embodiment of the present disclosure, the power management circuit 400 may reduce or stop a first output current of the first power input device 412 .
- the power management circuit 400 may charge the battery 406 based on at least one of an output current of the current/voltage conversion circuit 402 and a second output current output from the second power input device 414 through the second interface at step 715 .
- the power management circuit 400 may perform constant voltage charge.
- the power management circuit 400 may perform constant current charge based on the first output current and the second output at step 708 .
- the first output current may be a current value adjusted based on the current feedback 4044 of the second power input device 414
- the second output current may be a current value of second power input from the second power input device 414 to the second interface and be output through the second interface.
- Termination of charging of the battery 406 may be termination of connection of the power input device (e.g., first power input device 412 , second power input device 414 ) and the power management circuit 400 .
- FIG. 8 is a flowchart illustrating an example of charging a battery in a circuit having a plurality of power inputs according to an embodiment of the present disclosure.
- First power may be power input from the first power input device 412 to the current/voltage conversion circuit 402 through the first interface.
- the second power may be power input from the second power input device 414 to the battery charge circuit through the second interface.
- the power management circuit 400 may detect an input of first power at step 801 .
- the power management circuit 400 may detect an input of second power at step 803 .
- the power management circuit 400 may input the voltage feedback 4142 and the current feedback 4044 to the current/voltage conversion circuit 402 .
- the power management circuit 400 may turn off the current/voltage conversion circuit 402 for a predetermined time (e.g., 1 second) at step 804 . While the current/voltage conversion circuit 402 is turned off for a predetermined time, the power management circuit 400 may compare the first input voltage and the second input voltage.
- the first input voltage may be a voltage value input from the first power input device 412 through a first interface
- the second input voltage may be a voltage value input from the second power input device 414 through a second interface.
- the power management circuit 400 transfers second power information to the current/voltage conversion circuit 402 at step 805 , and such an operation is the same as operation of step 705 , and operations 807 to 815 are the same as those of FIG. 7 and therefore a detailed description thereof will be omitted.
- a method of charging a battery of an electronic device includes detecting an input of first external power and second external power; changing a first voltage output by the first external power source based on a second voltage input by the second external power source; changing a first current output by the first external power source based on a second current input by the second external power source; and charging the battery based on the first current and the second current.
- changing a first voltage output by the first external power source based on a second voltage input by the second external power source may include changing the first voltage to be substantially the same as the second voltage.
- changing a first current output by the first external power source based on a second current input by the second external power source may include: detecting reduction of the second current based on information of the battery; and reducing the first current, as the second current reduces.
- detecting reduction of the second current based on information of the battery may include reducing the second current, when a voltage of the battery is a full charging voltage.
- detecting an input of first external power and second external power may include outputting the first voltage and the first current based on power received by wireless from the first external power source.
- detecting an input of first external power and second external power may include outputting the second voltage and the second current based on power received from the second external power source.
- changing a first voltage output by the first external power source based on a second voltage input by the second external power source may include: stepping up, by the circuit, if the first voltage is lower than the second voltage, the first voltage; and setting the changed first voltage to be substantially the same as the second voltage.
- changing a first voltage output by the first external power source based on a second voltage input by the second external power source may include: stepping down, by the circuit, if the first voltage is at least equal to the second voltage, the first voltage; and setting the changed first voltage to be substantially the same as the second voltage.
- detecting an input of first external power and second external power may include controlling not to receive first external power from the first external power source by a predetermined time through the first interface, when the second external power is input through a second interface while the first external power is input through a first interface.
- an electronic device can charge quickly and safely a battery simultaneously using a plurality of power sources having different voltages.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Telephone Function (AREA)
Abstract
Description
- This application claims priority under 35 U.S.C. §119(a) to Korean Patent Application Serial No. 10-2015-0121980, which was filed in the Korean Intellectual Property Office on Aug. 28, 2015, the entire disclosure of which is incorporated herein by reference.
- 1. Field of the Disclosure
- The present disclosure relates generally to battery charging, and more specifically, to an electronic device and a method of charging a battery of the electronic device with a plurality of power sources.
- 2. Description of the Related Art
- As usage time of electronic devices increases, research with respect to batteries that may enable use of the increasingly-used electronic device has been ongoing. In particular, research regarding methods of charging batteries has been actively performed. Methods of charging batteries include wired and wireless charging methods.
- An electronic device that is able to perform charging with respect to two charging methods may select, through a switch, one of a power input device that performs wired charging and a power input device that performs wireless charging. The electronic device may connect the selected power input device to a charge circuit.
- When the charge circuit of the electronic device charges a battery of the electronic device using a plurality of power input devices that use the same or different methods, a reverse current may occur, due to a voltage difference between the plurality of power input devices, which may damage the charge circuit.
- The present disclosure has been made to address at least the above problems and at least the advantages described below. Accordingly, an aspect of the present disclosure provides a method of charging a battery of an electronic device using a plurality of power input devices having different voltages and the electronic device for implementing the method.
- According to an aspect of the present disclosure, an electronic device is provided. The electronic device includes a housing; a battery disposed within the housing; a first interface electrically or electromagnetically connected to a first external power source; a second interface electrically or electromagnetically connected to a second external power source; and a circuit electrically connected to the battery, the first interface, and the second interface, wherein the circuit changes a first voltage output from the first interface based on a second voltage output from the second interface, changes a first current output from the first interface based on a second current output from the second interface, and charges the battery based on the changed first current and second current.
- According to another aspect of the present disclosure, a method of charging a battery of an electronic device is provided. The method includes detecting an input of first external power from a first external power source and second external power from a second external power source; changing a first voltage output from the first external power source based on a second voltage input by the second external power source; changing a first current output from the first external power source based on a second current input by the second external power source; and charging the battery based on the first current and the second current.
- According to another aspect of the present disclosure, an electronic device is provided. The electronic device includes a housing; a battery disposed within the housing; a first interface electrically or electromagnetically connected to a first external power source; a second interface electrically or electromagnetically connected to a second external power source; and a circuit electrically connected to the battery, the first interface, and the second interface, wherein the circuit includes: a battery charge circuit having one side connected in series to the second interface and the other side connected in series to the battery; a current/voltage conversion circuit having one side connected in series to the first interface and the other side connected in series to the battery charge circuit; and a comparison circuit located between the second interface and the current/voltage conversion circuit and having one side connected in series to the second interface and an other side connected in series to the current/voltage conversion circuit.
- The above and other aspects, features, and advantages of the present disclosure will be more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is a block diagram illustrating a network environment according to various embodiments of the present disclosure; -
FIG. 2 is a block diagram illustrating a configuration of an electronic device according to various embodiments of the present disclosure; -
FIG. 3 is a block diagram illustrating a configuration of a program module according to various embodiments of the present disclosure; -
FIG. 4 is a circuit diagram illustrating constituent elements for charging a battery according to an embodiment of the present disclosure; -
FIGS. 5A and 5B are circuit diagrams illustrating a current/voltage conversion circuit in a circuit that charges a battery of an electronic device according to an embodiment of the present disclosure; -
FIGS. 6A and 6B are graphs illustrating charging of a battery according to a time and current according to an embodiment of the present disclosure; and -
FIGS. 7A, 7B, and 8 are flowcharts illustrating an example of charging a battery in a circuit having a plurality of power inputs according to an embodiment of the present disclosure. - Embodiments of the present disclosure are described in detail as follows with reference to the accompanying drawings. Descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
- The terms and words used in the following description and claims are not limited to their dictionary definitions, but are merely used to enable a clear and consistent understanding of the present disclosure.
- Herein, the singular forms “a”, “an”, and “the” of terms, include plural referents, unless the context clearly dictates otherwise. Thus, for example, reference to “a component surface” includes reference to one or more of such surfaces.
- Expressions such as “include” and “may include”, which may be used in the present disclosure to denote the presence of the disclosed functions, operations, and constituent elements, do not limit one or more additional functions, operations, and constituent elements. In the present disclosure, terms such as “include” and/or “have”, may be construed to denote a certain characteristic, number, operation, constituent element, component or a combination thereof, but should not be construed to exclude the existence of or a possibility of the addition of one or more other characteristics, numbers, operations, constituent elements, components or combinations thereof.
- In the present disclosure, the expression “and/or” includes any and all combinations of the associated listed words. For example, the expression “A and/or B” may include A, may include B, or may include both A and B.
- In the present disclosure, expressions including ordinal numbers, such as “first”, “second”, and/or the like, may modify various elements. However, such elements are not limited by the above expressions. For example, the above expressions do not limit the sequence and/or importance of the elements. The above expressions are merely used to distinguish an element from the other elements. For example, a first user device and a second user device indicate different user devices, although both device are user devices. As another further example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.
- When a component is referred to as being “connected” or “accessed” to another component, not only is the component connected or accessed to the other component, but another component may exist between the component and the other component. By contrast, when a component is referred to as being “directly connected” or “directly accessed” to another component, it should be understood that there is no component therebetween.
- The terms used in the present disclosure are used to describe specific various embodiments, and are not intended to limit the present disclosure.
- Unless otherwise defined, all terms including technical and/or scientific terms used herein have the same definitions as commonly understood by one of ordinary skill in the art to which the present disclosure pertains.
- Herein, an electronic device may correspond to at least one of a smartphone, a tablet personal computer (PC), a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a personal digital assistant (PDA), a portable multimedia player (PMP), a digital audio player (e.g., a moving picture
experts group phase 1 or phase 2 (MPEG-1 or MPEG-2) audio layer 3 (MP3) player), a mobile medical device, a camera, or a wearable device. Examples of the wearable device include a head-mounted-device (HMD) (e.g., electronic eyeglasses), electronic clothing, an electronic bracelet, an electronic necklace, an appcessory, an electronic tattoo, a smart watch, and the like. - The electronic device, according to the embodiments of the present disclosure, may also be a smart home appliances. Examples of smart home appliances include a television (TV), a digital video disc (DVD) player, an audio system, a refrigerator, an air-conditioner, a cleaning device, an oven, a microwave oven, a washing machine, an air cleaner, a set-top box, a TV box, a game console, an electronic dictionary, an electronic key, a camcorder, an electronic album, or the like.
- The electronic device, according to embodiments of the present disclosure, may also include medical devices (e.g., magnetic resonance angiography (MRA), magnetic resonance imaging (MRI), computed tomography (CT), a scanning machine, an ultrasonic scanning device, and the like), a navigation device, a global positioning system (GPS) receiver, an event data recorder (EDR), a flight data recorder (FDR), a vehicle infotainment device, an electronic equipment for ships (e.g., navigation equipment, gyrocompass, and the like), avionics, a security device, a head unit for vehicles, an industrial or home robot, an automatic teller machine (ATM), a point of sales (POS) system, and the like.
- The electronic device, according to embodiments of the present disclosure, may also include furniture or a portion of a building/structure, an electronic board, an electronic signature receiving device, a projector, various measuring instruments (e.g., a water meter, an electric meter, a gas meter and a wave meter) and the like. The electronic may also include a combination of the devices listed above. In addition, the electronic device may be a flexible and/or contoured device. It should be obvious to those skilled in the art that the electronic device is not limited to the aforementioned devices.
- Hereinafter, electronic devices according to embodiments of the present disclosure are described in detail with reference to the accompanying drawings. In the description, the term a ‘user’ may refer to a person or a device that uses or otherwise controls the electronic device, e.g., an electronic device having artificial intelligence.
-
FIG. 1 is a block diagram illustrating a network environment including an electronic device according to an embodiment of the present disclosure. - Referring to
FIG. 1 , anelectronic device 101 of anetwork environment 100 includes abus 110, aprocessor 120, amemory 130, an input/output (I/O)interface 150, adisplay 160 and acommunication interface 170. - The
bus 110 may be a communication circuit that connects the components to each other and transfers data (e.g., control messages) between the components. - The
processor 120 may receive instructions from the components (e.g., thememory 130, I/O interface 150,display 160 and communication interface 170) via thebus 110, decode the instructions and perform corresponding operations or data processing according to the decoded instructions. - The
memory 130 may store instructions or data transferred from/created in theprocessor 120 and/or the other components (e.g., I/O interface 150,display 160 and communication interface 170). Thememory 130 includeprogramming modules 140, such as akernel 141, amiddleware 143, an application programming interface (API) 145, and anapplication module 147. Each of the programming modules may be software, firmware, hardware or a combination thereof. - The
kernel 141 may control or manage system resources (e.g., thebus 110,processor 120, and memory 130) used to execute operations or functions of the programming modules, e.g., themiddleware 143,API 145, andapplication module 147. Thekernel 141 may also provide an interface that can access and control/manage the components of theelectronic device 101 via themiddleware 143,API 145, andapplication module 147. - The
middleware 143 may make it possible for theAPI 145 orapplication module 147 to perform data communication with thekernel 141. Themiddleware 143 may also perform control operations (e.g., scheduling and load balancing) for task requests transmitted from theapplication module 147 using, for example, a method for assigning the order of priority to use the system resources (e.g., thebus 110,processor 120, and memory 130) of theelectronic device 101 to at least one of the applications of theapplication module 147. - The
API 145 is an interface that allows theapplication module 147 to control functions of thekernel 141 ormiddleware 143. For example, theAPI 145 may include at least one interface or function (e.g., instruction) for file control, window control, character control, video process, and the like. - In embodiments of the present disclosure, the
application module 147 may include applications that are related to short message service (SMS)/multimedia messaging service (MMS), email, calendar, alarm, health care (e.g., an application for measuring blood sugar level, a workout application, and the like), and environment information (e.g., atmospheric pressure, humidity, temperature, and the like). Theapplication module 147 may be an application related to exchanging information between theelectronic device 101 and the external electronic devices (e.g., an electronic device 104). The information exchange-related application may include a notification relay application for transmitting specific information to an external electronic device or a device management application for managing external electronic devices. - For example, the notification relay application may include a function for transmitting notification information, created by the other applications of the electronic device 101 (e.g., SMS/MMS application, email application, health care application, environment information application, and the like), to an external electronic device (e.g., electronic device 104). In addition, the notification relay application may receive notification information from an external electronic device (e.g., electronic device 104) and provide it to the user. The device management application can manage (e.g., install, delete, or update) part of the functions of an external electronic device (e.g., electronic device 104) communicating with the
electronic device 101, e.g., turning on/off the external electronic device, turning on/off part of the components of the external electronic device, adjusting the brightness or the display resolution of the display of the external electronic device, and the like, applications operated in the external electronic device, or services from the external electronic device, e.g., call service or messaging service, and the like. - In various embodiments of the present disclosure, the
application module 147 may also include applications designated according to attributes (e.g., type of electronic device) of the external electronic device (e.g., electronic device 104). For example, if the external electronic device is an MP3 player, theapplication module 147 may include an application related to music playback. If the external electronic device is a mobile medical device, theapplication module 147 may include an application related to health care. Theapplication module 147 may include an application designated in theelectronic device 101 and applications transmitted from external electronic devices (e.g.,server 106,electronic device 104, and the like). - The I/
O interface 150 may receive instructions or data from the user via an I/O system (e.g., a sensor, keyboard or touch screen) and transfers them to theprocessor 120,memory 130 orcommunication interface 170 through thebus 110. For example, the I/O interface 150 may provide data corresponding to a user's touch input to a touch screen to theprocessor 120. The I/O interface 150 may receive instructions or data from theprocessor 120,memory 130 orcommunication interface 170 through thebus 110, and output them to an I/O system (e.g., a speaker or a display). For example, the I/O interface 150 may output voice data processed by theprocessor 120 to a speaker. - The
display 160 may display information (e.g., multimedia data, text data, and the like) on a screen so that the user can view it. - The
communication interface 170 may communicate between theelectronic device 101 and an external system (e.g., a first externalelectronic device 102, a second externalelectronic device 104, or server 106). For example, thecommunication interface 170 may connect to anetwork 162 in a wireless or wired mode, and communicate with the external system. Wireless communication may include Wi-Fi, Bluetooth (BT), near field communication (NFC), global positioning system (GPS) or cellular communication (e.g., long term evolution (LTE), LTE-advanced (LTE-A), code division multiple access (CDMA), wideband CDMA (WCDMA), universal mobile telecommunications system (UMTS), wireless broadband (Wi-Bro), global system for mobile communications (GSM), and the like). In addition, the wireless communication may include, for example,short range communication 164. Wired communication may include universal serial bus (USB), high definition multimedia interface (HDMI), recommended standard 232 (RS-232), plain old telephone service (POTS), and the like. - According to an embodiment of the present disclosure, the
network 162 may be a telecommunication network. The telecommunication network may include a computer network, Internet, Internet of Things (IoT), telephone network, and the like. The protocol for communication between theelectronic device 101 and the external system, e.g., transport layer protocol, data link layer protocol, or physical layer protocol, may be supported by at least one of theapplication module 147,API 145,middleware 143,kernel 141 andcommunication interface 170. -
FIG. 2 is a block diagram illustrating an electronic device according to an embodiment of the present disclosure. - Referring to
FIG. 2 , anelectronic device 201 may form all or part of theelectronic device 101 ofFIG. 1 . Theelectronic device 201 includes one or more processors of an application processor (AP) 210, acommunication module 220, a subscriber identification module (SIM)card 224, amemory 230, asensor module 240, aninput device 250, adisplay module 260, aninterface 270, anaudio module 280, acamera module 291, apower management module 295, abattery 296, anindicator 297, and amotor 298. - The
AP 210 may control a number of hardware or software components connected thereto by executing the operation system or applications, process data including multimedia data, and perform corresponding operations. TheAP 210 may be implemented with a system on chip (SoC). According to an embodiment of the present disclosure, theAP 210 may further include a graphics processing unit (GPU). - The communication module 220 (e.g., the
communication interface 170 ofFIG. 1 ) performs communication for data transmission/reception between the other electronic devices (e.g., the first externalelectronic device 102, the second externalelectronic device 104, or theserver 106 ofFIG. 1 ) that are connected to the electronic device (e.g.,electronic device 101 ofFIG. 1 ) via the network. Thecommunication module 220 includes acellular module 221, a Wi-Fi module 223, aBT module 225, aGPS module 227, anNFC module 228 and a radio frequency (RF)module 229. - The
cellular module 221 may provide voice calls, video calls, SMS or Internet service, and the like, via a communication network (e.g., LTE, LTE-A, CDMA, WCDMA, UMTS, Wi-Bro, GSM, and the like). Thecellular module 221 may also perform identification or authentication for electronic devices in a communication network by usingSIM card 224. According to an embodiment of the present disclosure, thecellular module 221 may perform part of the functions of theAP 210. For example, thecellular module 221 may perform part of the functions for controlling multimedia. - According to an embodiment of the present disclosure, the
cellular module 221 may include a communication processor (CP). Thecellular module 221 may be formed of, for example, an SoC. Although the embodiment of the present disclosure shown inFIG. 2 is implemented in such a way that the cellular module 221 (e.g., a CP), thepower management module 295, thememory 230, and the like, are separated from theAP 210, embodiments of the present disclosure can be modified such that theAP 210 includes at least part of the listed elements or other elements of the device 201 (e.g., the cellular module 221). - According to an embodiment of the present disclosure, the
AP 210 or the cellular module 221 (e.g., CP) may load instructions or data transmitted to and from at least one of a non-volatile memory or other components, on a volatile memory and then process them. TheAP 210 or thecellular module 221 may also store data which is transmitted from/created in at least one of the components, in a non-volatile memory. - The Wi-
Fi module 223, theBT module 225, theGPS module 227 and theNFC module 228 may include processors for processing transmission/reception of data, respectively. Although the embodiment of the present disclosure shown inFIG. 2 is implemented such that thecellular module 221, Wi-Fi module 223,BT module 225,GPS module 227, andNFC module 228 are separated from each other, embodiments of the present disclosure can be modified such that parts of the elements (e.g., two or more elements) are included in an integrated chip (IC) or an IC package. For example, part of the processors corresponding to thecellular module 221, Wi-Fi module 223,BT module 225,GPS module 227, andNFC module 228, e.g., a CP corresponding to thecellular module 221 and a Wi-Fi processor corresponding to the Wi-Fi 223, may be implemented with an SoC. - The
RF module 229 may transmit or receive data, e.g., RF signals. TheRF module 229 may include a transceiver, a power amplifier module (PAM), a frequency filter, a low noise amplifier (LNA), and the like. TheRF module 229 may also include parts for transmitting/receiving electromagnetic waves, e.g., conductors, wires, and the like, via free space during wireless communication. Although the embodiment of the present disclosure shown inFIG. 2 is implemented in such a way that thecellular module 221, Wi-Fi module 223,BT module 225,GPS module 227, andNFC module 228 share theRF module 229, an embodiment can be modified in such a way that at least one of the elements transmit or receive RF signals via a separate RF module. - The
SIM card 224 may be fitted into a slot of the electronic device. TheSIM card 224 may include unique identification information, e.g., integrated circuit card identifier (ICCID), or subscriber information, e.g., international mobile subscriber identity (IMSI). - The memory 230 (e.g., the
memory 130 ofFIG. 1 ) includes built-in orinternal memory 232 and anexternal memory 234. The built-inmemory 232 may include at least one of a volatile memory, e.g., dynamic random access memory (DRAM), static RAM (SRAM), synchronous dynamic RAM (SDRAM), and the like, non-volatile memory, e.g., one time programmable read only memory (OTPROM), programmable ROM (PROM), erasable and programmable ROM (EPROM), electrically erasable and programmable ROM (EEPROM), mask ROM, flash ROM, NAND flash memory, NOR flash memory, and the like. - According to an embodiment of the present disclosure, the built-in
memory 232 may be a solid state drive (SSD). Theexternal memory 234 may further include a flash drive, e.g., compact flash (CF), secure digital (SD), micro-SD, mini-SD, extreme digital (XD), a memory stick, and the like. Theexternal memory 234 may be functionally connected to the electronic device via various types of interfaces. Theelectronic device 101 may further include storage devices or storage media such as hard drives. - The
sensor module 240 may measure a physical quantity or sense operation states of theelectronic device 201 and convert the measured or sensed data into electrical signals. Thesensor module 240 includes, for example, agesture sensor 240A, agyro sensor 240B, anatmospheric pressure sensor 240C, amagnetic sensor 240D, anacceleration sensor 240E, agrip sensor 240F, aproximity sensor 240G, acolor sensor 240H (e.g., red-green-blue (RGB) sensor), a biosensor 240I, a temperature/humidity sensor 240J, anluminance sensor 240K, and an ultra-violet (UV)sensor 240M. - The
input system 250 includes atouch panel 252, a pen sensor 254 (e.g., a digital pen sensor), a key 256 and anultrasonic input device 258. Thetouch panel 252 may sense touches using a capacitive sensing mode, a pressure sensing mode, an infrared sensing mode, and an ultrasonic sensing mode. Thetouch panel 252 may further include a control circuit. When thetouch panel 252 is designed to operate in a capacitive sensing mode, the panel can also sense mechanical/physical touches or proximity of an object. Thetouch panel 252 may further include a tactile layer. When including the tactile layer, thetouch panel 252 can also provide tactile feedback to the user. - The pen sensor 254 (e.g., a digital pen sensor) may perform detection in a same or similar manner as receiving a user's touch input or by using a separate recognition sheet. The key 256 may include mechanical buttons, optical keys or a key pad. The
ultrasonic input device 258 can sense sounds via amicrophone 288 of theelectronic device 201 by using an input tool for generating ultrasonic signals, and then receiving and checking data associated with the signals. Theultrasonic input device 258 can sense signals in a wireless mode. According to an embodiment of the present disclosure, theelectronic device 201 may also receive a user's inputs from an external system (e.g., a computer or server) via thecommunication module 220. - The display module 260 (e.g., display 160 of
FIG. 1 ) includes, for example, apanel 262, ahologram unit 264, and aprojector 266. Thepanel 262 may be implemented with a liquid crystal display (LCD), active matrix organic light emitting diodes (AMOLEDs), or the like. Thepanel 262 may be implemented in a flexible, transparent, impact-resistant, and/or wearable form. Thepanel 262 may form a single module with thetouch panel 252. Thehologram unit 264 shows a three-dimensional image in the air using interference of light. Theprojector 266 may display images by projecting light on a screen. The screen may be placed, for example, inside or outside of theelectronic device 201. In an embodiment of the present disclosure, thedisplay module 260 may further include a control circuit for controlling thepanel 262, thehologram unit 264, or theprojector 266. - The
interface 270 includes, for example, aHDMI 272, aUSB 274, anoptical interface 276, a D-subminiature (D-sub) 278, and the like. Theinterface 270 may also be included in thecommunication interface 170 shown inFIG. 1 . Theinterface 270 may also include a mobile high-definition link (MHL) interface, an SD card, a multi-media card (MMC) interface, an infrared data association (IrDA) standard interface, or the like. - The
audio module 280 may provide conversions between audio and electrical signals. At least part of the components in theaudio module 280 may be included in the I/O interface 150 shown inFIG. 1 . Theaudio module 280 may process audio output from/input to, for example, aspeaker 282, areceiver 284,earphones 286, themicrophone 288, and the like. - The
camera module 291 may take still images or moving images. In an embodiment of the present disclosure, thecamera module 291 may include one or more image sensors (e.g., on the front side and/or the back side), a lens, an image signal processor (ISP), a flash (e.g., an LED or a xenon lamp), or the like. - The
power management module 295 may manage electric power supplied to theelectronic device 201. Thepower management module 295 may include a power management integrated circuit (PMIC), a charger IC, a battery gauge, and the like. - The PMIC may be implemented in the form of an IC chip or SoC. Charging electric power may be performed in wired and/or wireless modes. The charger IC may charge a battery, and prevent input over-voltage or input over-current to the battery from a charger. In an embodiment of the present disclosure, the charger IC may be implemented with a wired charging type and/or a wireless charging type. Examples of the wireless charging type of the charger IC are a magnetic resonance type, a magnetic induction type, an electromagnetic type, an acoustic type, and the like. If the charger IC is implemented with a wireless charging type, it may also include an additional circuit for wireless charging, e.g., a coil loop, a resonance circuit, a rectifier, and the like.
- The battery gauge may measure a residual amount of the
battery 296, a level of voltage, a level of current, a temperature during the charge, and the like. Thebattery 296 stores electric power and supplies it to theelectronic device 201. Thebattery 296 may include a rechargeable battery or a solar battery. - The
indicator 297 shows states of theelectronic device 201 or of the parts thereof (e.g., the AP 210), e.g., a booting state, a message state, a recharging state, and the like. Themotor 298 converts an electrical signal into a mechanical vibration. Theelectronic device 201 may include a processor for supporting a mobile TV, e.g., a GPU. The mobile TV supporting processor may process media data that complies with standards of digital multimedia broadcasting (DMB), digital video broadcasting (DVB), media flow, and the like. - Each of the elements/units of the electronic device according to the present disclosure may be implemented with one or more components, and may be called different names according to types of electronic devices. The electronic device may include at least one element described above. The electronic device may also be modified in such a way as to remove part of the elements or include new elements. In addition, the electronic device may also be modified in such a way that parts of the elements are integrated into one entity that performs their original functions.
- In the present disclosure, the term “module” refers to a unit including hardware, software, firmware or a combination thereof. For example, the term “module” may be used interchangeably with “unit,” “logic,” “logical block,” “component,” “circuit,” and the like. A module may be a minimum identifiable unit or part of an integrated component. A module may also be a minimum unit or part thereof that can perform one or more functions of the module. A module may be implemented through mechanical or electronic modes. For example, modules may be implemented with at least one of an application specific integrated circuit (ASIC) chip, a field-programmable gate array (FPGAs) and a programmable-logic device that can perform functions that are known or that are yet be developed.
-
FIG. 3 is a block diagram of a program module according to various embodiments of the present disclosure. - Referring to
FIG. 3 , aprogram module 310 may include an OS for controlling resources related to the electronic device and/or various applications executed in the operating system. The OS may be, for example, Android, iOS, Windows, Symbian, Tizen, Bada, or the like. - The
program module 310 includes akernel 320,middleware 330, anAPI 360, andapplications 370. At least some of theprogram module 310 may be preloaded on an electronic device, or may be downloaded from the first externalelectronic device 102, the secondexternal device 104, or theserver 106. - The
kernel 320 includeS, for example, a system resource manager 311 and a device driver 312. The system resource manager 311 may perform control, allocation, retrieval, or the like, of system resources. According to an embodiment of the present disclosure, the system resource manager 311 may include a process manager, memory manager, file system manager, or the like. The device driver 312 may include, for example, a display driver, camera driver, Bluetooth driver, shared memory driver, USB driver, keypad driver, Wi-Fi driver, audio driver, or an inter-process communication (IPC) driver. - The
middleware 330 may provide a function required by theapplications 370 in common, or provide various functions to theapplications 370 through theAPI 360 so that theapplications 370 can efficiently use limited system resources within the electronic device. According to an embodiment of the present disclosure, themiddleware 330 includes, for example, at least one of aruntime library 335, anapplication manager 341, awindow manager 342, amultimedia manager 343, aresource manager 344, apower manager 345, adatabase manager 346, apackage manager 347, aconnectivity manager 348, anotification manager 349, alocation manager 350, agraphic manager 351, and asecurity manager 352. - The
runtime library 335 may include a library module which a compiler uses in order to add a new function through a programming language while theapplications 370 are being executed. Theruntime library 335 may perform input/output management, memory management, functionality for an arithmetic function, or the like. - The
application manager 341 may manage, for example, a life cycle of at least one of theapplications 370. Thewindow manager 342 may manage graphical user interface (GUI) resources used for the screen. Themultimedia manager 343 may determine a format required to reproduce various media files, and may encode or decode a media file by using a coder/decoder (codec) appropriate for the corresponding format. Theresource manager 344 may manage resources such as a source code, memory, and storage space of at least one of theapplications 370. - The
power manager 345 may operate together with a basic input/output system (BIOS) to manage a battery or other power source, and may provide power information required for the operation of the electronic device. Thedatabase manager 346 may generate, search for, and/or change a database to be used by at least one of theapplications 370. Thepackage manager 347 may manage the installation or update of an application distributed in the form of a package file. - The
connectivity manager 348 may manage a wireless connection such as, for example, Wi-Fi or Bluetooth. Thenotification manager 349 may display or notify of an event, such as an arrival message, appointment, proximity notification, and the like, in such a manner as not to disturb the user. Thelocation manager 350 may manage location information of the electronic device. Thegraphic manager 351 may manage a graphic effect, which is to be provided to the user, or a user interface related to the graphic effect. Thesecurity manager 352 may provide various security functions required for system security, user authentication, and the like. According to an embodiment of the present disclosure, when the electronic device has a telephone call function, themiddleware 330 may further include a telephony manager for managing a voice call function or a video call function of the electronic device. - The
middleware 330 may include a middleware module that forms a combination of various functions of the above-described elements. Themiddleware 330 may provide a module specialized for each type of OS in order to provide a differentiated function. Also, themiddleware 330 may dynamically delete some of the existing elements, or may add new elements as required. - The
API 360 may be, for example, a set of API programming functions, and may be provided with a different configuration according to an OS. For example, one API set may be provided for each platform. Two or more API sets may be provided for each platform. - The
applications 370 may include, for example, one or more applications which can provide functions such ashome 371,dialer 372, short message service (SMS)/multimedia message service (MMS) 373, instant message (IM) 374,browser 375,camera 376,alarm 377,contacts 378,voice dialer 379,email 380,calendar 381,media player 382,album 383,clock 384, health care (e.g., measure exercise quantity or blood sugar), or environment information (e.g., atmospheric pressure, humidity, or temperature information). - According to an embodiment of the present disclosure, the
applications 370 may include an information exchange application supporting information exchange between the electronic device and an external electronic device (e.g., the first externalelectronic device 102 or the second externalelectronic device 104 ofFIG. 1 ). The information exchange application may include, for example, a notification relay application for transferring specific information to an external electronic device or a device management application for managing an external electronic device. - For example, the notification relay application may include a function of transferring, to the external electronic device (e.g., the
electronic device 102 or 104), notification information generated from other applications of the electronic device 101 (e.g., an SMS/MMS application, e-mail application, health management application, or environmental information application). Further, the notification relay application may receive notification information from, for example, an external electronic device and provide the received notification information to a user. - The device management application may manage (e.g., install, delete, or update), for example, at least one function of an external electronic device (e.g., the first external
electronic device 102 or the second externalelectronic device 104 ofFIG. 1 ) communicating with the electronic device (e.g., a function of turning on/off the external electronic device or some components thereof, or a function of adjusting luminance or a resolution of the display), applications operating in the external electronic device, or services provided by the external electronic device (e.g., a call service and a message service). - According to an embodiment of the present disclosure, the
applications 370 may include an application (e.g., a health care application of a mobile medical device or the like) designated according to an attribute of the external electronic device (e.g., the first externalelectronic device 102 or the second external 104 ofFIG. 1 ). Theapplications 370 may include an application received from the external electronic device (e.g., theserver 106, or theelectronic device 102 or 104). Theapplications 370 may include a preloaded application or a third party application which can be downloaded from the server. Names of the elements of theprogram module 310 may change depending on the type of OS. -
FIG. 4 is a circuit diagram illustrating constituent elements for charging a battery according to an embodiment of the present disclosure. - Referring to
FIG. 4 , an electronic device may charge abattery 406 using a plurality of power input devices (e.g., a firstpower input device 412 and a second power input device 414). Operations for charging thebattery 406 may be controlled by a power management circuit 400 (e.g., thepower management module 295 and hereinafter, the power management circuit 400), which is a separate constituent element other than a processor (e.g., theprocessor 210 ofFIG. 2 ) that controls the electronic device. Thepower management circuit 400 includes a current/voltage conversion circuit 402,comparison circuit 408, andbattery charge circuit 404 and may control operation thereof. - In the following embodiment of the present disclosure, there are two power input devices that include a device that supplies power to the electronic device (i.e., a first
power input device 412 and a second power input device 414). - According to an embodiment of the present disclosure, the first
power input device 412 may include a device that wirelessly supplies power to the electronic device, and the secondpower input device 414 may include a device that supplies power to the electronic device by wire. - According to an alternative embodiment of the present disclosure, the first
power input device 412 may include a device that supplies power to the electronic device by wire, and the secondpower input device 414 may include a device that wirelessly supplies power to the electronic device. - Further, according to an embodiment of the present disclosure, the first
power input device 412 and the secondpower input device 414 may each include a device that supplies power to the electronic device by wire. - Further, according to an embodiment of the present disclosure, the first
power input device 412 and the secondpower input device 414 may each include a device that supplies power to the electronic device by wireless. - According to various embodiments, the first
power input device 412 may supply power to thebattery charge circuit 404 through the current/voltage conversion circuit 402. The firstpower input device 412 may include a first interface between the current/voltage conversion circuit 402 and the firstpower input device 412. The firstpower input device 412 may supply power (hereinafter, “first power”) to the current/voltage conversion circuit 402 through the first interface. - As first power is supplied to the
power management circuit 400, a current may be input from the firstpower input device 412 to the current/voltage conversion circuit 402 through the first interface and hereinafter, may be referred to as a first input current. - As first power is supplied to the
power management circuit 400, a voltage may be input from the firstpower input device 412 to the current/voltage conversion circuit 402 through the first interface and hereinafter, may be referred to as a first input voltage. - According to various embodiments of the present disclosure, the second
power input device 414 may supply power to thebattery charge circuit 404 through anode 410 located between the current/voltage conversion circuit 402 and thebattery charge circuit 404. - The second
power input device 414 may include a second interface between thenode 410 and the secondpower input device 414. The secondpower input device 414 may supply power (hereinafter, “second power”) to thebattery charge circuit 404 through the second interface. - As second power is supplied to the
power management circuit 400, a current may be input from the secondpower input device 414 to a second interface and hereinafter, may be referred to as a second input current. - As second power is supplied to the
power management circuit 400, a voltage may be input from the secondpower input device 414 to a second interface and hereinafter, may be referred to as a second input voltage. - A first output current may be input to the
battery charge circuit 404 through thenode 410. The first output current may be a current in which the current/voltage conversion circuit 402 adjusts a current of power input from the firstpower input device 412 to the current/voltage conversion circuit 402 through the first interface and that is output to thebattery charge circuit 404. - A second output current may be input to the
battery charge circuit 404 through thenode 410. The second output current may be output from the secondpower input device 414 to thebattery charge circuit 404 through the second interface. - According to embodiments, the
battery charge circuit 404 may receive a current (hereinafter, “first output current”) input from the current/voltage conversion circuit 402 through thenode 410. Thebattery charge circuit 404 may receive a current (hereinafter, “second output current”) input from the secondpower input device 414 through thenode 410. Accordingly, thebattery charge circuit 404 may receive the first output current input from the current/voltage conversion circuit 402 and receive the second output current input from the secondpower input device 414. - According to an embodiment of the present disclosure, when power is supplied from the second
power input device 414,voltage feedback 4142, which is voltage measurement information of power supplied from the secondpower input device 414 may be transferred to the current/voltage conversion circuit 402 under the control of thepower management circuit 400. When power is initially supplied from the secondpower input device 414, thevoltage feedback 4142 may include a voltage value of power input from the secondpower input device 414. A voltage value of the input second power may be measured by a voltage measurement circuit. - According to an embodiment of the present disclosure, when power is supplied from the second
power input device 414,current feedback 4044, which is measurement information about a current of power may be transferred from the secondpower input device 414 to the current/voltage conversion circuit 402. Thecurrent feedback 4044 may include a current value calculated by comparing a voltage value (hereinafter, “a second voltage value”) of power output from the secondpower input device 414 and a voltage reference (VREF) using thecomparison circuit 408. Here, the voltage reference may be a voltage value initially set when power is input from the secondpower input device 414 and for example, may be a voltage of 5V. That is, thecurrent feedback 4044 may be a current value calculated by a difference between the second voltage value and a reference voltage. The second voltage value may be measured using a coulomb-counter method by a voltage measurement circuit located at anintermediate point 4122 before power of the secondpower input device 414 is input to thebattery charge circuit 404. A comparison process may be performed by thecomparison circuit 408 and may be performed to determine whether a second output current reduces. For example, when constant voltage charge is performed, a second output current may gradually reduce. - According to embodiments of the present disclosure, when power is input from the first
power input device 412 to the current/voltage conversion circuit 402, the current/voltage conversion circuit 402 may adjust a voltage (first output voltage) output from the current/voltage conversion circuit 402 based on thevoltage feedback 4142 of the secondpower input device 414. Here, thevoltage feedback 4142 may include a voltage value of power input from the secondpower input device 414 to the current/voltage conversion circuit 402. - According to an embodiment of the present disclosure, the current/
voltage conversion circuit 402 may include a circuit that changes a first input voltage input from the firstpower input device 412 based on thevoltage feedback 4142 and adjust a first output voltage. When the first input voltage input from the firstpower input device 412 and the second input voltage input from the secondpower input device 414 are different, the first output voltage output from the current/voltage conversion circuit 402 based on the voltage feedback 4142 (e.g., second input voltage) may be adjusted. - According to an embodiment of the present disclosure, when the first input voltage is at least equal to the second input voltage, by stepping down (lowering) the first output voltage based on the
voltage feedback 4142, the current/voltage conversion circuit 402 may output the first output voltage to thebattery charge circuit 404 such that the first output voltage has substantially the same voltage value as that of the second output voltage. - According to an embodiment of the present disclosure, when the first input voltage is lower than the second input voltage, by stepping up (i.e., adjusting higher) the first output voltage based on the
voltage feedback 4142, the current/voltage conversion circuit 402 may output the first output voltage to thebattery charge circuit 404 such that the first output voltage has substantially the same voltage value as that of the second output voltage. - For example, when a first input voltage of first power input from the first
power input device 412 is 6.5V and when voltage feedback of second power input from the secondpower input device 414 is 4.5V, the current/voltage conversion circuit 402 may lower the first input voltage 6.5V input from the firstpower input device 412 to 4.5V, which is the second output voltage output from the secondpower input device 414 to thebattery charge circuit 404 and may output 4.5V to thebattery charge circuit 404. - As another example, when a first input voltage of first power input from the first
power input device 412 is 4.5V and when voltage feedback of second power input from the secondpower input device 414 is 6.5V, the current/voltage conversion circuit 402 may step up the voltage 4.5V input from the first power to 6.5V, which is the second output voltage output from the secondpower input device 414 and output 6.5V to thebattery charge circuit 404. - According to embodiments of the present disclosure, the current/
voltage conversion circuit 402 may adjust a current input from the firstpower input device 412 based on thecurrent feedback 4044 input from the secondpower input device 414 and output the current to thebattery charge circuit 404. When second power is supplied from the secondpower input device 414, thecurrent feedback 4044 may include a current value calculated by comparing a second voltage value and a voltage reference using thecomparison circuit 408. The reference voltage may be a voltage value initially set when power is input from the secondpower input device 414. The reference voltage may be a voltage value set to monitor a voltage of power input from the secondpower input device 414. - For example, in the
battery 406, a constant voltage charge may be performed, and the current/voltage conversion circuit 402 may step down (i.e., adjust lower) a first output current based on thecurrent feedback 4044 input from thecomparison circuit 408. When generally charging thebattery 406, constant current charge that charges with a constant current and constant voltage charge that charges while gradually reducing a current may be performed. - According to an embodiment of the present disclosure, when a voltage of the
battery 406 arrives at a full charging voltage, a second output current of the secondpower input device 414 may be reduced under the control of thepower management circuit 400. Here, when charging thebattery 406, a full charging voltage may be a voltage set to determine whether to perform constant current charge or constant voltage charge. The current/voltage conversion circuit 402 may control to reduce the first output current output from the current/voltage conversion circuit 402 based on the inputcurrent feedback 4044. The first output current may have a current value of an input current adjusted to be the same as the second output current by the current/voltage conversion circuit 402 when power is supplied from the firstpower input device 412. Accordingly, the adjusted first output current may be supplied to thebattery charge circuit 404 through a path ‘A’. - The
battery charge circuit 404 may receive a current from the current/voltage conversion circuit 402 and the secondpower input device 414 to charge thebattery 406. - When supplying a current to the
battery 406, thebattery charge circuit 404 may determine charge state information (e.g., a battery residual quantity, a battery voltage, and whether the battery is fully charged) of thebattery 406. According to an embodiment of the present disclosure, thebattery charge circuit 404 may determine whether a capacity (or level) of thebattery 406 is in a full charging state. - According to the foregoing embodiments of the present disclosure, the
power management circuit 400 may adjust a first output voltage and a first output current based on power information of the second power. Accordingly, the second input current may be actually the same as the second output current, and the second input voltage may be the same as the second output voltage. -
FIGS. 5A and 5B are circuit diagrams illustrating a current/voltage conversion circuit in a battery charge circuit of an electronic device according to an embodiment of the present disclosure. - Referring to
FIG. 5A , an electronic device may charge thebattery 406 using a plurality of power input devices (e.g., the firstpower input device 412 and the second power input device 414). Operations for charging thebattery 406 may be controlled by thepower management circuit 400, which is a separate constituent element other than a processor (e.g., the processor 210) for controlling the electronic device. - The
power management circuit 400 includes the current/voltage conversion circuit 402 and thebattery charge circuit 404. Further, thepower management circuit 400 may further include a comparison circuit, as shown inFIG. 4 . - According to an embodiment of the present disclosure, the current/
voltage conversion circuit 402 may include a constantcurrent control circuit 5024,ADC terminal 5026, andcharge control circuit 5028. - According to an embodiment of the present disclosure, when second power is input from the second
power input device 414, theADC terminal 5026 may receive thevoltage feedback 4142 input from the secondpower input device 414. As second power is input, theADC terminal 5026 may transfer thevoltage feedback 4142, which is voltage measurement information measured by a measurement circuit (not shown) to thecharge control circuit 5028. Accordingly, thecharge control circuit 5028 may set a first output voltage output from the current/voltage conversion circuit 402 to thebattery charge circuit 404 based on thevoltage feedback 4142. - For example, if a first input voltage is at least equal to a second input voltage, the
charge control circuit 5028 may step down an output voltage of the current/voltage conversion circuit 402 to be the same as a second output voltage of second power based on thevoltage feedback 4142. Here, the second output voltage may be substantially the same as the first input voltage input through the second interface. - However, if a first voltage is lower than a second voltage, the
charge control circuit 5028 may step up a first output voltage of the current/voltage conversion circuit 402 to be the same as a second output voltage of second power based on thevoltage feedback 4142. Here, the second output voltage may be substantially the same as the first input voltage input through the second interface. - According to an embodiment of the present disclosure, when second power is input from the second
power input device 414, the constantcurrent control circuit 5024 may receive an input of thecurrent feedback 4044. Thecurrent feedback 4044 may include a current value calculated by comparing a second output voltage (i.e., the “second voltage value”) of second power output from the secondpower input device 414 through the second interface and a voltage reference VREF using the comparison circuit. - Further, the constant
current control circuit 5024 may monitor a current (hereinafter, “first input current”) input from the first power to the current/voltage conversion circuit 402 at 5022. Monitoring may be measured with a coulomb-counter method by a current measurement unit. The constantcurrent control circuit 5024 may transfer duty ratio setting information that can adjust a first output current output from the current/voltage conversion circuit 402 to thecharge control circuit 5028. - According to an embodiment of the present disclosure, the
charge control circuit 5028 is a separate constituent element from a control circuit (e.g., theprocessor 210 ofFIG. 2 ) constituting the electronic device and may charge thebattery 406 with power (e.g., the first power and the second power) input from the firstpower input device 412 and the secondpower input device 414. - The
charge control circuit 5028 may adjust a duty ratio based on thevoltage feedback 4142 received from the secondpower input device 414 through theADC terminal 5026. Thecharge control circuit 5028 may adjust a duty ratio based on thecurrent feedback 4044 received from the secondpower input device 414 through the constantcurrent control circuit 5024. Here, the duty ratio means a ratio of a high signal segment within one period. By adjusting a duty ratio based on thevoltage feedback 4142, thecharge control circuit 5028 may adjust a first output voltage output from the current/voltage conversion circuit 402. By adjusting a duty ratio based on thecurrent feedback 4044, thecharge control circuit 5028 may adjust a first output current output from the current/voltage conversion circuit 402. - The current/
voltage conversion circuit 402 further includes metal-oxide semiconductor field-effect-transistors (MOSFETS) 5021 and 5023. When power is input from the power input device, the MOSFET may enable power of the battery not to be supplied to a system of the electronic device. - Referring to
FIG. 5B , the electronic device may charge thebattery 406 using the firstpower input device 412 and the secondpower input device 414. - Operations for charging the
battery 406 may be controlled by thepower management circuit 400, which is a separate constituent element other than a processor (e.g., theprocessor 210 ofFIG. 2 ) that controls the electronic device. - The
power management circuit 400 includes the current/voltage conversion circuit 402 and thebattery charge circuit 404. - In
FIG. 5B , acontrol circuit 5100 is included in thepower management circuit 400, but may be a separate constituent element from thepower management circuit 400 and may be theprocessor 210 ofFIG. 2 . Accordingly, thecontrol circuit 5100 may equally perform operations performed by the constantcurrent control circuit 5024 and theACD terminal 5026 ofFIG. 5A . That is, thepower management circuit 400 may be controlled by thecontrol circuit 5100. - The current/
voltage conversion circuit 402 of the electronic device according to an embodiment of the present disclosure may receive thevoltage feedback 4142 and thecurrent feedback 4044 according to application of power of the secondpower input device 414 from thecontrol circuit 5100. Here, thecontrol circuit 5100 may be the same constituent element as theprocessor 210 ofFIG. 2 and may perform the same function as that of the constantcurrent control circuit 5024 and theADC terminal 5026 ofFIG. 5A . That is, when thecontrol circuit 5100 receives an input of thevoltage feedback 4142 from the secondpower input device 414, thecontrol circuit 5100 may transfer thevoltage feedback 4142 to thecharge control circuit 5028. When thecontrol circuit 5100 receives an input of thecurrent feedback 4044 from the secondpower input device 414, thecontrol circuit 5100 may transfer thecurrent feedback 4044 to thecharge control circuit 5028. InFIG. 5B , a detailed description corresponds to that ofFIG. 5A and therefore a detailed description thereof is omitted herein. - In an embodiment of the present disclosure, operation of the
charge control circuit 5028 may be performed under the control of thecontrol circuit 5100. Thecharge control circuit 5028 may operate under the control of thepower management circuit 400. -
FIGS. 6A and 6B are graphs illustrating charging of a battery according to a time and current according to an embodiment of the present disclosure. - Referring to
FIGS. 4, 6A, and 6B ,FIG. 6A is a diagram illustrating a problem that a reverse current occurs when the current/voltage conversion circuit 402 does not receive thecurrent feedback 4044 input from the secondpower input device 414. -
FIG. 6B is a diagram illustrating operation of charging thebattery 406 without a reverse current when the current/voltage conversion circuit 402 receives thecurrent feedback 4044 input from the secondpower input device 414. - The
battery charge circuit 404 may arrive at a time point at which a voltage of thebattery 406 becomes a full charging voltage while performing constant current charge. When a voltage of thebattery 406 becomes a full charging voltage, thebattery charge circuit 404 may perform constant voltage charge. - The
battery charge circuit 404 may perform charge with a constant current value when performing constant current charge. At this time, a charge voltage may gradually step up. - The
battery charge circuit 404 may perform charge with a gradually reducing current value when performing constant voltage charge. At this time, a charge voltage may be constant. - The full charging voltage may be a voltage value to be a reference to determine whether the
battery 406 is fully charged. If a voltage of thebattery 406 is not a full charging voltage, thebattery charge circuit 404 may perform constant current charge, and if a voltage of thebattery 406 is a full charging voltage, thebattery charge circuit 404 may perform constant voltage charge. - Referring to
FIG. 6A , anentire charge input 610 may be a current value input from a plurality of power input devices (e.g., the firstpower input device 412, the second power input device 414) to thebattery 406. - A
first charge input 620 may be a current value input to thebattery 406 by the firstpower input device 412. - A
second charge input 630 may be a current value input to thebattery 406 by the secondpower input device 414. - The
entire charge input 610 that charges thebattery 406 may perform constant voltage charge from atime point 601 at which a voltage of thebattery 406 arrives at a full charging voltage while performing constant current charge. - At a constant current charge segment A, a current value may be constant and a voltage value may step up. At a constant voltage charge segment B, a current value may gradually reduce, and a voltage value may be constant.
- If a voltage of the
battery 406 is less than a full charging voltage, thebattery 406 may receive a current through constant current charge at the constant current charge segment A. Constant current charge may be sequentially performed with a constant value of current, and a charge voltage may step up. - If a voltage of the
battery 406 is at least equal to a full charging voltage, thebattery 406 may receive a gradually reducing value of current through constant voltage charge at the constant voltage charge segment B. - Since the
battery charge circuit 404 may estimate a predetermined full charging voltage of thebattery 406 connected to an output terminal of thebattery charge circuit 404, thebattery charge circuit 404 may adjust a second output current. That is, thebattery charge circuit 404 may adjust to reduce the second output current at the constant voltage charge segment B, as in thesecond charge input 630. - When the current/
voltage conversion circuit 402 does not receive an input of thecurrent feedback 4044 from the secondpower input device 414, the current/voltage conversion circuit 402 cannot adjust a first output current. This is because the current/voltage conversion circuit 402 cannot estimate a value of power to be input from the secondpower input device 414 connected to an output terminal of the current/voltage conversion circuit 402. Because the current/voltage conversion circuit 402 cannot estimate a value of power to be input from the secondpower input device 414, when current feedback is not input from the secondpower input device 414, at the constant voltage charge segment B, the current/voltage conversion circuit 402 may continuously supply the first output current to the battery and thecharge circuit 404 with the same value, as in thefirst charge input 620. - When the current/
voltage conversion circuit 402 does not receive an input of current feedback, the first output current may output a constant current value, and thebattery charge circuit 404 may control the second output current based on a full charging voltage of thebattery 406. As the first output current, a constant current value is output and the second output current is controlled, and thus reversal of the second output current may occur at the constant voltage charge segment B, as in 606. - According to an embodiment of the present disclosure, at the constant voltage charge segment B, in order to prevent a reverse current from occurring, the current/
voltage conversion circuit 402 may receive an input of thecurrent feedback 4044. -
FIG. 6B is a diagram illustrating operation of charging thebattery 406 without a reverse current, as the current/voltage conversion circuit 402 according to various embodiments receives an input of thecurrent feedback 4044 related to a second output current output from the secondpower input device 414. - Referring to an
entire charge input 640 ofFIG. 6B , as in theentire charge input 610, theentire charge input 640 of thebattery 406 enables to perform constant current charge at a constant current charge segment A, and when a voltage of thebattery 406 arrives at atime point 601 at which the voltage of thebattery 406 is at least equal to a full charging voltage, at a constant voltage charge segment B, theentire charge input 640 may enable to perform constant voltage charge. At the constant voltage charge segment B, theentire charge input 640 of thebattery 406 may enable to charge with the same current value and to charge with a gradually reducing current value from atime point 601 at which the voltage of thebattery 406 arrives at a full charging voltage. - According to an embodiment of the present disclosure, the entire charge input 640 y be the sum of current values input from power input devices (e.g., the first
power input device 412, the second power input device 414) that supply power in order to charge thebattery 406. For example, theentire charge input 640 may be the sum of current values of afirst charge input 650 and asecond charge input 660. Accordingly, a current value at the constant voltage charge segment B of theentire charge input 640 may be the sum of a current value of a constant voltage charge segment B-1 in thefirst charge input 650 and a current value of a constant voltage charge segment B-2 in thesecond charge input 660. - According to an embodiment of the present disclosure, in the
entire charge input 640 graph, if a voltage of thebattery 406 is at least equal to a full charging voltage, thebattery charge circuit 404 may maintain a full charging voltage and gradually reduce a current that charges thebattery 406 at the constant voltage charge segment ‘B’. - In order to reduce a current that charges the
battery 406, thebattery charge circuit 404 may control to reduce a second output current. For example, the second output current may reduce at the constant voltage charge segment B-2, as in thesecond charge input 660 graph. - As the second output current reduces, the
current feedback 4044 corresponding to the reduced second output current may be input to the current/voltage conversion circuit 402. Thecurrent feedback 4044 may be obtained by comparing a reference voltage first input from the secondpower input device 414 and a reduced voltage value and may be input to the current/voltage conversion circuit 402. A comparing process corresponds to that ofFIG. 4 and therefore a detailed description thereof will be omitted. - According to various embodiments of the present disclosure, as a second output current of the second
power input device 414 receives an input of thecurrent feedback 4044, which is gradually reducing information at a constant voltage charge segment B-2, the current/voltage conversion circuit 402 may adjust to reduce afirst output current 604 of thefirst charge input 650 at a constant voltage charge segment B-1. At the constant voltage charge segment B-1, as a first output current of thefirst charge input 650 is controlled through thecurrent feedback 4044, at a constant voltage charge segment B-2 of asecond charge input 660, a reverse current may not occur. - According to an embodiment of the present disclosure, a current reduction amount (or a slope) of the
first charge input 650 may be greater than a current reduction amount (or a slope) of thesecond charge input 660. For example, as the current/voltage conversion circuit 402 receives an input of thecurrent feedback 4044, at the constant voltage charge segment B-1 of thefirst charge input 650, the current/voltage conversion circuit 402 may quickly reduce the first output current 604, and at the constant voltage charge segment B of theentire charge input 640, the current/voltage conversion circuit 402 may perform charge through a current of thesecond charge input 660. Thepower management circuit 400 may control to quickly reduce the first output current 604 or to stop a current from being output to thebattery charge circuit 404. - According to an embodiment of the present disclosure, an electronic device may include a housing; a battery disposed within the housing; a first interface electrically or electromagnetically connected to a first external power source; a second interface electrically or electromagnetically connected to a second external power source; and a circuit electrically connected to the battery, the first interface, and the second interface, wherein the circuit changes a first voltage output from the first interface based on a second voltage output from the second interface, changes a first current output from the first interface based on a second current output from the second interface, and charges the battery based on the changed first current and second current.
- According to an embodiment of the present disclosure, in an electronic device, the changed first voltage may be substantially the same as the second voltage.
- According to an embodiment of the present disclosure, in an electronic device, the circuit may detect reduction of the second current and reduce the first current based on the detection.
- According to an embodiment of the present disclosure, in an electronic device, the first power source may output the first voltage and the first current based on power received by wireless.
- According to an embodiment of the present disclosure, the electronic device may further include a connector connected to the second external power source, wherein the electronic device may output the second voltage and the second current based on power received from the second external power source through the connector.
- According to an embodiment of the present disclosure, in an electronic device, the circuit may step up the first voltage, if the first voltage is lower than the second voltage and step down the first voltage, if the first voltage is at least equal to the second voltage.
- According to an embodiment of the present disclosure, in an electronic device, the circuit may receive the second voltage and the second current from the second interface, reduce the second current at a time point at which a voltage of the battery becomes a predetermined voltage, and reduce the first current according to the reduced second current.
- According to an embodiment of the present disclosure, in an electronic device, the circuit may not receive power from the first external power source through the first interface by a predetermined time, when the second external power is input through the second interface while the first external power is input through the first interface.
- According to an embodiment of the present disclosure, in an electronic device, the first external power source and the second external power source may be a wireless charge device or a wire charge device.
- According to an embodiment of the present disclosure, an electronic device includes a housing; a battery disposed within the housing; a first interface electrically or electromagnetically connected to a first external power source; a second interface electrically or electromagnetically connected to a second external power source; and a circuit electrically connected to the battery, the first interface, and the second interface, wherein the circuit includes: a battery charge circuit having one side connected in series to the second interface and the other side connected in series to the battery; a current/voltage conversion circuit having one side connected in series to the first interface and the other side connected in series to the battery charge circuit; and a comparison circuit located between the second interface and the current/voltage conversion circuit and having one side connected in series to the second interface and the other side connected in series to the current/voltage conversion circuit.
- According to an embodiment of the present disclosure, in an electronic device, the current/voltage conversion circuit may change a first voltage output from the first interface based on a second voltage output from the second interface and change a first current output from the first interface based on a second current output from the second interface.
-
FIGS. 7A, 7B, and 8 are flowcharts illustrating an example of charging a battery in a circuit having a plurality of power inputs according to an embodiment of the present disclosure. - Referring to
FIGS. 4 and 7A , the power management circuit 400 (e.g., thepower management module 295 ofFIG. 2 ) may detect an input of second power atstep 701. The second power may be power input from the secondpower input device 414 to thebattery charge circuit 404 through the second interface. Thepower management circuit 400 may control general operations for charging thebattery 406. - The
power management circuit 400 may detect an input of first power while inputting the second power atstep 703. The first power may be power input from the firstpower input device 412 to thepower management circuit 400 through the first interface. Accurately, the first power may be power input from the firstpower input device 412 to the current/voltage conversion circuit 402 of thepower management circuit 400. - In
FIG. 7A , a description of the first power and the second power corresponds to that ofFIG. 4 and therefore a detailed description thereof will be omitted. - The
power management circuit 400 may transfer second power information to the current/voltage conversion circuit 402 atstep 705. The second power information may becurrent feedback 4044 orvoltage feedback 4142, which is measurement information of the second power. When power is supplied from the secondpower input device 414, thevoltage feedback 4142 may include an initial voltage value of power input to the secondpower input device 414. The initial voltage value may be a reference voltage. Thecurrent feedback 4044 may be a current value calculated by a difference between a voltage value of the second power and a reference voltage. The voltage value of the second power may be measured using a coulomb-counter method by a voltage measurement circuit located at theintermediate point 4122 before power of the secondpower input device 414 is input to thebattery charge circuit 404. - For example, if a voltage of the
battery 406 is at least equal to a full charging voltage, thepower management circuit 400 may control to reduce a current in which the secondpower input device 414 outputs. Accordingly, a compared current value of a current corresponding to a predetermined reference voltage when power is initially supplied and a present current measured when a voltage of thebattery 406 is a full charging voltage may be thecurrent feedback 4044. - According to an embodiment of the present disclosure, the
power management circuit 400 may know a change of a current value by a difference between an initial voltage value and a present voltage value. For example, if a voltage of thebattery 406 is at least equal to a full charging voltage, thepower management circuit 400 may know reduction of a current input from the secondpower input device 414 by thecurrent feedback 4044. If a voltage of thebattery 406 is at least equal to a full charging voltage, thecurrent feedback 4044 may be a current value reduced to correspond to reduction of a current value input from the secondpower input device 414. - The
power management circuit 400 may adjust a first output voltage output from the current/voltage conversion circuit 402 based on second power information atstep 707. The second power information may be voltage feedback and current feedback. A detailed process thereof will be described with reference toFIG. 7B . - Referring to
FIG. 7B , thepower management circuit 400 according to various embodiments may compare a first voltage of a first power source and a second voltage of a second power source atstep 721. The first voltage is a first input voltage input from the firstpower input device 412 to the current/voltage conversion circuit 402, and a second voltage is a second input voltage input from the secondpower input device 414 and is a second input voltage provided to the current/voltage conversion circuit 402 and may include thevoltage feedback 4142. - If a first input voltage is lower than a second input voltage at
step 723, thepower management circuit 400 may step up (highly adjust) the first output voltage to be the same as the second output voltage atstep 725. That is, thepower management circuit 400 may step up (highly adjust) the first output voltage to be the same as the second output voltage based on thevoltage feedback 4142, which is one of second power information. The first input voltage may be a voltage value input from the firstpower input device 412 through a first interface, and the second input voltage may be a voltage value input from the secondpower input device 414 through a second interface. The first output voltage may be a voltage output from the current/voltage conversion circuit 402 to thebattery charge circuit 404 and may be a voltage in which a first input voltage is adjusted based on thevoltage feedback 4142. The second output voltage may be a voltage output from the second interface to thebattery charge circuit 404 and may be the same as a second input voltage. - If a first input voltage is at least equal to a second input voltage at
step 723, thepower management circuit 400 may step down (lowly adjust) the first output voltage to be the same as the second output voltage atstep 727. That is, thepower management circuit 400 may control the current/voltage conversion circuit 402 based on thevoltage feedback 4142, which is one of second power information to step down (lowly adjust) the first output voltage to be the same as the second output voltage. - Referring again to
FIG. 7A , thepower management circuit 400 may charge thebattery 406 with a first output current and a second output current atstep 708. The first output current may be a current output from the current/voltage conversion circuit 402 to thebattery charge circuit 404. The second output current may be a current output from the second interface to thebattery charge circuit 404. - In an embodiment of the present disclosure, as the first output voltage is adjusted to be the same as the second output voltage, the
power management circuit 400 may charge thebattery 406 with the first output current and the second output current having the same current value. When performing constant current charge, thepower management circuit 400 may control the first output current to be the same as the second output current. - The
power management circuit 400 may determine whether a voltage of thebattery 406 rises to a full charging voltage atstep 709. Here, the full charging voltage may be a value set to a reference for performing constant voltage charge when charging thebattery 406. Thepower management circuit 400 may perform constant current charge until a time point at which a voltage of thebattery 406 becomes a full charging voltage. When performing constant current charge, a charge current becomes constant, but a charge voltage may rise. When a voltage of thebattery 406 arrives at a full charging voltage, thepower management circuit 400 may perform constant voltage charge. When performing constant voltage charge, thepower management circuit 400 may control a charge voltage to be constant and to reduce a charge current that charges thebattery 406. - If a voltage of the
battery 406 rises to a full charging voltage, thepower management circuit 400 may control to perform constant voltage charge and to reduce a second output current of the secondpower input device 414 atstep 711. Thepower management circuit 400 may control the current/voltage conversion circuit 402 to reduce a first output current based on thecurrent feedback 4044 corresponding to a reduced second output current atstep 713. That is, thepower management circuit 400 may control the current/voltage conversion circuit 402 to receive thecurrent feedback 4044. Thepower management circuit 400 may reduce an output current of the current/voltage conversion circuit 402 according to the reduced second output current based on thecurrent feedback 4044. In an embodiment of the present disclosure, thepower management circuit 400 may reduce or stop a first output current of the firstpower input device 412. - The
power management circuit 400 may charge thebattery 406 based on at least one of an output current of the current/voltage conversion circuit 402 and a second output current output from the secondpower input device 414 through the second interface atstep 715. When a voltage of thebattery 406 arrives at a full charging voltage, thepower management circuit 400 may perform constant voltage charge. - If a voltage of the
battery 406 does not rise to a full charging voltage atstep 709, thepower management circuit 400 may perform constant current charge based on the first output current and the second output atstep 708. The first output current may be a current value adjusted based on thecurrent feedback 4044 of the secondpower input device 414, and the second output current may be a current value of second power input from the secondpower input device 414 to the second interface and be output through the second interface. - The foregoing operations may be repeatedly performed until charging of the
battery 406 is terminated by thepower management circuit 400. Termination of charging of thebattery 406 may be termination of connection of the power input device (e.g., firstpower input device 412, second power input device 414) and thepower management circuit 400. -
FIG. 8 is a flowchart illustrating an example of charging a battery in a circuit having a plurality of power inputs according to an embodiment of the present disclosure. - First power may be power input from the first
power input device 412 to the current/voltage conversion circuit 402 through the first interface. The second power may be power input from the secondpower input device 414 to the battery charge circuit through the second interface. - The
power management circuit 400 may detect an input of first power atstep 801. Thepower management circuit 400 may detect an input of second power atstep 803. When the second power is input from the secondpower input device 414, thepower management circuit 400 may input thevoltage feedback 4142 and thecurrent feedback 4044 to the current/voltage conversion circuit 402. - In order to prevent a reverse current from occurring due to a difference between a first input voltage and a second input voltage, the
power management circuit 400 may turn off the current/voltage conversion circuit 402 for a predetermined time (e.g., 1 second) atstep 804. While the current/voltage conversion circuit 402 is turned off for a predetermined time, thepower management circuit 400 may compare the first input voltage and the second input voltage. The first input voltage may be a voltage value input from the firstpower input device 412 through a first interface, and the second input voltage may be a voltage value input from the secondpower input device 414 through a second interface. - Thereafter, the
power management circuit 400 transfers second power information to the current/voltage conversion circuit 402 atstep 805, and such an operation is the same as operation ofstep 705, andoperations 807 to 815 are the same as those ofFIG. 7 and therefore a detailed description thereof will be omitted. - In the foregoing embodiment of the present disclosure, it has been described that order of receiving an input of first power and second power is different, but first power and second power may be simultaneously input.
- According to an embodiment of the present disclosure, a method of charging a battery of an electronic device includes detecting an input of first external power and second external power; changing a first voltage output by the first external power source based on a second voltage input by the second external power source; changing a first current output by the first external power source based on a second current input by the second external power source; and charging the battery based on the first current and the second current.
- According to an embodiment of the present disclosure, in a method of charging a battery of an electronic device, changing a first voltage output by the first external power source based on a second voltage input by the second external power source may include changing the first voltage to be substantially the same as the second voltage.
- According to an embodiment of the present disclosure, in a method of charging a battery of an electronic device, changing a first current output by the first external power source based on a second current input by the second external power source may include: detecting reduction of the second current based on information of the battery; and reducing the first current, as the second current reduces.
- According to an embodiment of the present disclosure, in a method of charging a battery of an electronic device, detecting reduction of the second current based on information of the battery may include reducing the second current, when a voltage of the battery is a full charging voltage.
- According to an embodiment of the present disclosure, in a method of charging a battery of an electronic device, detecting an input of first external power and second external power may include outputting the first voltage and the first current based on power received by wireless from the first external power source. In a method of charging a battery of an electronic device, detecting an input of first external power and second external power may include outputting the second voltage and the second current based on power received from the second external power source.
- According to an embodiment of the present disclosure, in a method of charging a battery of an electronic device, changing a first voltage output by the first external power source based on a second voltage input by the second external power source may include: stepping up, by the circuit, if the first voltage is lower than the second voltage, the first voltage; and setting the changed first voltage to be substantially the same as the second voltage.
- According to an embodiment of the present disclosure, in a method of charging a battery of an electronic device, changing a first voltage output by the first external power source based on a second voltage input by the second external power source may include: stepping down, by the circuit, if the first voltage is at least equal to the second voltage, the first voltage; and setting the changed first voltage to be substantially the same as the second voltage.
- According to an embodiment of the present disclosure, in a method of charging a battery of an electronic device, detecting an input of first external power and second external power may include controlling not to receive first external power from the first external power source by a predetermined time through the first interface, when the second external power is input through a second interface while the first external power is input through a first interface.
- As described above, according to various embodiments of the present disclosure, an electronic device can charge quickly and safely a battery simultaneously using a plurality of power sources having different voltages.
- Although embodiments of the present disclosure have been described in detail hereinabove, it should be clearly understood that many variations and modifications of the basic inventive concepts herein described, which may appear to those skilled in the art, will still fall within the spirit and scope of the embodiments of the present disclosure as defined in the appended claims and their equivalents.
Claims (20)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150121980A KR102445714B1 (en) | 2015-08-28 | 2015-08-28 | Method for charging battery and electronic device implementing the same |
KR10-2015-0121980 | 2015-08-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20170063140A1 true US20170063140A1 (en) | 2017-03-02 |
US10069327B2 US10069327B2 (en) | 2018-09-04 |
Family
ID=58104440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/235,674 Expired - Fee Related US10069327B2 (en) | 2015-08-28 | 2016-08-12 | Electronic device and method for charging battery based on a plurality of power sources |
Country Status (2)
Country | Link |
---|---|
US (1) | US10069327B2 (en) |
KR (1) | KR102445714B1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109149682A (en) * | 2017-06-28 | 2019-01-04 | 三星电子株式会社 | Control the method and its electronic equipment of multiple batteries |
US20190013685A1 (en) * | 2017-07-06 | 2019-01-10 | Qualcomm Incorporated | Parallel charging architecture |
CN111566893A (en) * | 2018-05-15 | 2020-08-21 | Oppo广东移动通信有限公司 | To-be-charged device and charging control method |
US11121563B2 (en) * | 2018-12-27 | 2021-09-14 | Asustek Computer Inc. | Power control circuit |
US20220083085A1 (en) * | 2020-09-17 | 2022-03-17 | Samsung Electronics Co., Ltd. | Power supply method and electronic device using the same |
US11355963B2 (en) | 2017-04-07 | 2022-06-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to-be-charged, wireless charging apparatus, and wireless charging method |
US11387686B2 (en) * | 2018-05-15 | 2022-07-12 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged, wireless charging method and system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220120204A (en) * | 2021-02-23 | 2022-08-30 | 삼성전자주식회사 | Electronic device and method for controlling heat generation thereof |
CN114498866B (en) * | 2022-04-19 | 2022-07-29 | 伏达半导体(合肥)有限公司 | Dual-battery charging device and method and controller thereof |
WO2023239013A1 (en) * | 2022-06-10 | 2023-12-14 | 삼성전자 주식회사 | Wireless power transmission apparatus, wireless power reception apparatus, and method for wirelessly transmitting power |
KR102634231B1 (en) * | 2023-04-28 | 2024-02-06 | 주식회사 이지트로닉스 | Charging system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7034503B2 (en) * | 2003-02-21 | 2006-04-25 | Research In Motion Limited | Circuit and method of operation for an adaptive charge rate power supply |
US20100231175A1 (en) * | 2007-02-14 | 2010-09-16 | Ricoh Company, Ltd. | Power supply circuit, charging unit having the power supply circuit, and power supply method |
US20130106195A1 (en) * | 2011-10-31 | 2013-05-02 | Ruediger Soeren Kusch | Apparatus and method for rapidly charging an electric vehicle |
US20160172905A1 (en) * | 2014-12-15 | 2016-06-16 | Kohler Co. | Communication Failure Handling |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006115656A (en) | 2004-10-18 | 2006-04-27 | Canon Inc | Power supply control method of electronic apparatus |
JP4746694B2 (en) | 2009-08-11 | 2011-08-10 | 株式会社バッファロー | Connected device |
US20110227536A1 (en) | 2010-03-17 | 2011-09-22 | Bourilkov Jordan T | Battery with universal charging input |
JP5524019B2 (en) | 2010-10-13 | 2014-06-18 | 本田技研工業株式会社 | Charging apparatus and charging method |
KR101920236B1 (en) | 2012-06-19 | 2018-11-20 | 삼성전자주식회사 | Method for charging battery and an electronic device thereof |
-
2015
- 2015-08-28 KR KR1020150121980A patent/KR102445714B1/en active IP Right Grant
-
2016
- 2016-08-12 US US15/235,674 patent/US10069327B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7034503B2 (en) * | 2003-02-21 | 2006-04-25 | Research In Motion Limited | Circuit and method of operation for an adaptive charge rate power supply |
US20100231175A1 (en) * | 2007-02-14 | 2010-09-16 | Ricoh Company, Ltd. | Power supply circuit, charging unit having the power supply circuit, and power supply method |
US20130106195A1 (en) * | 2011-10-31 | 2013-05-02 | Ruediger Soeren Kusch | Apparatus and method for rapidly charging an electric vehicle |
US20160172905A1 (en) * | 2014-12-15 | 2016-06-16 | Kohler Co. | Communication Failure Handling |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11355963B2 (en) | 2017-04-07 | 2022-06-07 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to-be-charged, wireless charging apparatus, and wireless charging method |
CN109149682A (en) * | 2017-06-28 | 2019-01-04 | 三星电子株式会社 | Control the method and its electronic equipment of multiple batteries |
US20190013685A1 (en) * | 2017-07-06 | 2019-01-10 | Qualcomm Incorporated | Parallel charging architecture |
US10587136B2 (en) * | 2017-07-06 | 2020-03-10 | Qualcomm Incorporated | Parallel charging architecture |
CN111566893A (en) * | 2018-05-15 | 2020-08-21 | Oppo广东移动通信有限公司 | To-be-charged device and charging control method |
AU2018423401B2 (en) * | 2018-05-15 | 2021-06-17 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged and charging control method |
JP2021516527A (en) * | 2018-05-15 | 2021-07-01 | オッポ広東移動通信有限公司Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Charged device and charge control method |
EP3742575A4 (en) * | 2018-05-15 | 2020-12-09 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged and charging control method |
US11387686B2 (en) * | 2018-05-15 | 2022-07-12 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to be charged, wireless charging method and system |
JP7204766B2 (en) | 2018-05-15 | 2023-01-16 | オッポ広東移動通信有限公司 | Device to be charged and charging control method |
US11750018B2 (en) | 2018-05-15 | 2023-09-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Device to-be-charged and charging control method |
US11121563B2 (en) * | 2018-12-27 | 2021-09-14 | Asustek Computer Inc. | Power control circuit |
US20220083085A1 (en) * | 2020-09-17 | 2022-03-17 | Samsung Electronics Co., Ltd. | Power supply method and electronic device using the same |
US11960310B2 (en) * | 2020-09-17 | 2024-04-16 | Samsung Electronics Co., Ltd. | Power supply method using a plurality of voltage sources and electronic device using the same |
Also Published As
Publication number | Publication date |
---|---|
KR102445714B1 (en) | 2022-09-23 |
US10069327B2 (en) | 2018-09-04 |
KR20170025484A (en) | 2017-03-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10069327B2 (en) | Electronic device and method for charging battery based on a plurality of power sources | |
US10631361B2 (en) | Method and apparatus for providing user with information received by electronic device | |
US10015792B2 (en) | Electronic device and method for avoiding interference between frequencies therefor | |
US20160062326A1 (en) | Device for controlling performance of the device based on fluctuations in internal temperature and method thereof | |
US10020832B2 (en) | Method of controlling SIM card and SD card and electronic device for implementing the same | |
US20160216757A1 (en) | Electronic device and method for managing power | |
US10474861B2 (en) | Method and electronic device for driving fingerprint sensor | |
US10242167B2 (en) | Method for user authentication and electronic device implementing the same | |
US20170063107A1 (en) | Method and electronic device for obtaining bio signals | |
KR102151135B1 (en) | Method for managing power and electronic device thereof | |
US10302763B2 (en) | Method for detecting proximity of object and electronic device using the same | |
KR102226522B1 (en) | Apparatus and method for determining network status | |
US20160119538A1 (en) | Electronic device for sensing lens and operating method thereof | |
US20160141746A1 (en) | Electronic device including antenna | |
KR20160020315A (en) | Controlling Method based on a communication status and Electronic device supporting the same | |
US10237087B2 (en) | Method for controlling transmission speed and electronic device thereof | |
US20160086138A1 (en) | Method and apparatus for providing function by using schedule information in electronic device | |
US10319341B2 (en) | Electronic device and method for displaying content thereof | |
CN105830421B (en) | Electronic device and operation method thereof | |
US10430046B2 (en) | Electronic device and method for processing an input reflecting a user's intention | |
US20180004380A1 (en) | Screen display method and electronic device supporting the same | |
US9612790B2 (en) | Method and electronic device for providing frame information | |
KR20150128302A (en) | Electronic device and interconnecting method thereof | |
US9622172B2 (en) | Data transmission method and electronic device adapted to the method | |
US10602001B2 (en) | Method for identifying data usage and electronic device implementing the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEE, MYUNGKEE;KIM, JOOHAN;KIM, JINMAN;AND OTHERS;SIGNING DATES FROM 20160708 TO 20160713;REEL/FRAME:039918/0565 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20220904 |